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Symbolics 3670: traced out more of the FEP v24 I/O memory map based on the PALs from the patent [Lord Nightmare]

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Lord-Nightmare 2016-03-24 11:02:19 -04:00
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src/mame/drivers/symbolics.cpp
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@ -121,45 +121,54 @@ a23 a22 a21 a20 a19 a18 a17 a16 a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4
? ? ? ? ? 0 0 1 1 1 * * * * * * * * * * * * * 0 R Open Bus (socket @D17 second half)
? ? ? ? ? 0 0 1 1 1 * * * * * * * * * * * * * 1 R Open Bus (socket @D11 second half)
? ? ? ? ? 0 1 * * * * * * * * * * * * * * * * * RW RAM (4164 DRAMs; these have parity as well, which is checked in the i/o area somehow?)
1 1 1 1 1 1 1 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? * ? SPY BUS and FEP peripherals for OLD FEP hardware, not the NFEP we have here; the map of this area is listed in octal on pdf page 399 of us patent 4887235. The NFEP map is certainly not the same, but is probably similar.
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 * * * * RW SPY-CMEM (writes CMEM WD, reads UIR)
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 * W SPY-SQ-CTL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 R SPY-BOARD-ID (read a given board's id prom, board select is in U AMRA register)
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 * R SPY-SQ-STATUS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 * ? SPY-NEXT-CPC
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0? ? SPY-TASK
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 R SPY-CTOS-HIGH
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0? R SPY-OPC
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0? W SPY-MC-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 R SPY-MC-ID
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 R SPY-MC-ERROR-STATUS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 R SPY-ECC-SYNDROME
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 R SPY-ECC-ADDRESS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 *? R SPY-MC-STATUS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 W SPY-NET-SELECT
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 W SPY-NET-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 x? 0 RW MPSC-0-A
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 x? 1 RW MPSC-0-B
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 x? 0 RW MPSC-1-A
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 x? 1 RW MPSC-1-B
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 *? R? SPY-DMA-HIGH-ADDRS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 *? R SPY-DMA-CONTROLLER
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 x? 0 0 0 ?? R FEP-PADDLE-ID-PROM
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 ?? R FEP-BOARD-ID-PROM
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 1 W FEP-BOARD-ID-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 1 W FEP-DMA-AND-CLOCK-CTL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0 W FEP-DMA-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 1 W FEP-PROC-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 0 0 0? W FEP(SPY)-LBUS-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 0? W FEP-SERIAL-BAUD-RATE-0
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 1 1 0? W FEP-SERIAL-BAUD-RATE-1
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0? W FEP-HSB-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 0? W FEP-HSB-DATA
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 1 0 0? W FEP-HSB-POINTER
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 0 0 0? W P-PORT
a23 a22 a21 a20 a19 a18 a17 a16 a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 (a0 via UDS/LDS)
1 1 1 1 1 1 1 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? * Iiii ? SPY BUS and FEP peripherals for OLD FEP hardware, not the NFEP we have here; the map of this area is listed in octal on pdf page 399 of us patent 4887235. The NFEP map is certainly not the same, but is probably similar. I is device ID from DEVNUM pal
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 * * * * 0010 RW SPY-CMEM (writes CMEM WD, reads UIR)
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 * 0010 W SPY-SQ-CTL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 0010 R SPY-BOARD-ID (read a given board's id prom, board select is in U AMRA register)
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 * 0010 R SPY-SQ-STATUS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 * 0010 ? SPY-NEXT-CPC
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 0? 0010 ? SPY-TASK
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 0 1 1 0010 R SPY-CTOS-HIGH
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0? 0010 R SPY-OPC
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0? 0010 W SPY-MC-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0010 R SPY-MC-ID
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 0010 R SPY-MC-ERROR-STATUS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0010 R SPY-ECC-SYNDROME
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1 1 0010 R SPY-ECC-ADDRESS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 *? 0010 R SPY-MC-STATUS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 0 0010 W SPY-NET-SELECT
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 0 1 0 0 1 0010 W SPY-NET-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 x x x x 0010 . Open bus?
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 x? 0 0001 RW MPSC-0-A
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 0 x? 1 0001 RW MPSC-0-B
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 x? 0 0001 RW MPSC-1-A
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 x? 1 0001 RW MPSC-1-B
[ | ] HA5
[ | | | ] HA10
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 0 1 1 x? * 0110 RW SPY-DMA-HIGH-ADDRS
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 0 1 x? x? x? * 0111 RW SPY-DMA-CONTROLLER
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 *? *? *? *? * 0100 R FEP-PADDLE-ID-PROM
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 0 *? *? *? *? * 0101 R FEP-BOARD-ID-PROM
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 1 0011 RW FEP-BOARD-ID-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 0 1 1 0011 RW FEP-DMA-AND-CLOCK-CTL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 0 0011 RW FEP-DMA-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 0 1 0 1 0011 RW FEP-PROC-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 0 0 * 1100 RW FEP(SPY)-LBUS-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 1 0 * 1101 RW FEP-SERIAL-BAUD-RATE-0
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 0 1 1 1 * 1101 RW FEP-SERIAL-BAUD-RATE-1
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 * 1001 RW FEP-HSB-CONTROL
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 0 1 * 1001 RW FEP-HSB-DATA
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 1 0 * 1001 RW FEP-HSB-POINTER
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 0 1 1 x 1001 . Open bus?
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 0 x? * 1110 RW P-PORT
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 * 1010 RW NanoFEP i8749
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 * 1011 RW CART
0000 unused/no device selected
1000 unused
1111 unused
a23 a22 a21 a20 a19 a18 a17 a16 a15 a14 a13 a12 a11 a10 a9 a8 a7 a6 a5 a4 a3 a2 a1 (a0 via UDS/LDS)
Now for stuff the 3670 nfep code actually accesses:
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 1 W ? 0x02 gets written here
| | | | | | hex
| | | | | | | | octal
Soft reset
@ -276,9 +285,9 @@ ROM_START( s3670 )
// note: load all the PLAs, PALs and PROMs here
// picture is at https://4310b1a9-a-11c96037-s-sites.googlegroups.com/a/ricomputermuseum.org/home/Home/equipment/symbolics-3645/Symbolics_3645_FEP.jpg
/*
LBBUFA.4 mb7124 @A6
LBBUFB.4 mb7124 @A7
LBBUFC.4 mb7124 @A9 <- 4887235 page 630 has LBBUFC.UCODE rev27
LBBUFA.4 mb7124 @A6 <- 4887235 page 630 has LBBUFC.UCODE rev27 \
LBBUFB.4 mb7124 @A7 <- 4887235 page 630 has LBBUFC.UCODE rev27 > all 3 of these are stored in the same file
LBBUFC.4 mb7124 @A9 <- 4887235 page 630 has LBBUFC.UCODE rev27 /
LBAAR.4 @A12 <- 4887235 page 625 has LBAAR rev4, pal16l8
LBPAR.4A @A13 <- 4887235 page 624 has LBPAR rev9, pal16l8
PROCA.4 pal16R8A @A25 <- 4887235 page 621 has PROCA rev8, pal16r8