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Update Williams System 11 Background Audio Board documentation and formatting, fix a missing save state entry, and remove a few forgotten dead definitions in s11a.h [Lord Nightmare]

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This commit is contained in:
Lord-Nightmare 2020-07-23 21:43:58 -04:00
parent a625e45f33
commit 94e4a0d842
2 changed files with 29 additions and 19 deletions
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46
src/mame/audio/s11c_bg.cpp
View File

@ -5,7 +5,8 @@
* (M68B09E + YM2151 + HC555xx + DAC)
*
* Used by Williams System 11A (F-14), all System 11B (except Jokerz) and all System 11C pinballs
* Used by Midway Y-Unit Arcade Hardware (for Smash TV only; see below for High Impact Football)
* Used by Midway Y-Unit Arcade Hardware (for Smash TV, Trog, and Strike Force; see below
* for [Super] High Impact Football)
*
* The interface connector for this board is a 20 pin header J4 with the following pinout:
*
@ -42,12 +43,14 @@
*
*
* The mixing resistors before the MC1458 differ between the D-11581, D-11581-20xx (System 11C), and D-1129x board schematics:
* D-1129x D-11581 D-11581-20xx (and A-13971-500xx)
* (All resistors are 5% unless otherwise noted)
* newstyle P/N A-13971-43313 (and A-13971-500xx)
* oldstyle P/N D-1129x D-11581 D-11581-20xx or D-11581-400xx
* CPU_SOUND R32 2.2k R12 2.2k R12 4.7k
* YM2151 CH1 R33 10k R14 10k R14 20k
* YM2151 CH2 R34 10k R15 10k R15 20k
* MC1408 DAC R35 10k R16 6.3k R16 13k
* CVSD [R30 10k] [R13 4.99k 2%] R13 4.99k 2%
* CVSD [R30 10k] [R13 4.99k 1%] R13 4.99k 1%
* MC1458 Feedback R38 10k R17 10k R17 10k
* MC1458 +-to-gnd R36 4.7k R11 4.7k R11 4.7k
* [] - if CVSD section present
@ -76,21 +79,29 @@
* W11 - linked w/W2+W3 : EPROM U20 is a 2764, 27128 or 27256 (where pin 1 must be high)
* NOTE: A board called A-13971-50003 is used on Midway Y-Unit Arcade Hardware High Impact Football,
* and on the first 500 or so Funhouse Pinball machines. (Later Funhouse pinballs use the A-12738-50003
* WPC Sound board, mentioned in the CVSD filtering section below. Despite its earlier part number, the
* A-12738-50003 WPC Sound Board is a newer design, with the A-13971-50003 mentioned here seemingly produced
* later as a stopgap due to development or production issues with the WPC Sound Board.)
* The A-13971-50003 board is ALMOST the same as the D-11581-20xx System 11C version, except it has 32 pin
* sockets for 27c010 chips, instead of 28 pin sockets. Despite this, the board is fully backwards compatible
* with the D-11581-20xx, including the mixing resistors.
* The highest ROM address bit for all 3 roms (as shown in the High Impact Football schematics,
* but omitted from the prototype FunHouse Schematics) is driven by the rom banking register 0x7800 bit 3, which
* is unused/unconnected on all other board revisions.
* The 32 pin EPROM socket pins 1(VPP), 31(/PGM), 32(VCC) and 30(NC) are all tied to VCC.
* Jumpers W2, W3, W10 and W11 act the same as they do on D-11581-20xx, just offset down in the socket by 2 pins.
* NOTE: A board called A-13971-50003 is used on Midway Y-Unit Arcade Hardware
* High Impact Football and Super High Impact Football, and on the first 500 or
* so Funhouse Pinball machines. (Later Funhouse pinballs use the A-12738-50003
* WPC Sound board, mentioned in the CVSD filtering section below. Despite its
* earlier part number, the A-12738-50003 WPC Sound Board is a newer design,
* with the A-13971-50003 mentioned here seemingly produced later as a stopgap
* due to development or production issues with the WPC Sound Board.)
* The A-13971-50003 board is ALMOST the same as the D-11581-20xx System 11C
* version, except it has 32 pin sockets for 27c010 chips, instead of 28 pin
* sockets for smaller chips. Despite this, the board is fully backwards
* compatible with the D-11581-20xx, including the mixing resistors.
* The highest address bit (A16, pin 2) for all 3 EPROMs (as shown in the
* High Impact Football schematics, is driven by the ROM banking register
* 0x7800 bit 3, which is unused/unconnected on all older board revisions.
* The 32 pin EPROM socket pins 1(VPP), 31(/PGM), 32(VCC) and 30(NC) are all
* tied to VCC.
* Jumpers W2, W3, W10 and W11 act the same as they do on D-11581-20xx, just
* offset down in the socket by 2 pins.
* This means this board is fully backwards compatible with D-11581-20xx.
* (Note that the prototype Funhouse Schematics and the Super High Impact
* Footall Kit Service manual both incorrectly have schematics for the
* D-11581-20xx System 11C version of the board, and do not show the extra
* banking bit and larger sockets that the A-13971-50003 board has.)
* Williams D-11297/D-11298 "BG Music & Speech Board":
@ -341,6 +352,7 @@ void s11c_bg_device::device_start()
/* resolve lines */
m_cb2_cb.resolve();
m_pb_cb.resolve();
save_item(NAME(m_old_resetq_state));
}
void s11c_bg_device::common_reset()

2
src/mame/includes/s11a.h
View File

@ -22,14 +22,12 @@ public:
void init_s11a();
void bgbank_w(uint8_t data);
void dig0_w(uint8_t data);
private:
DECLARE_MACHINE_RESET(s11a);
void s11a_audio_map(address_map &map);
void s11a_bg_map(address_map &map);
void s11a_main_map(address_map &map);
};