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aha1542c: ASIC note

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AJR 2020-07-18 14:08:26 -04:00
parent a1bb5475cc
commit 5716df3b90
1 changed files with 8 additions and 1 deletions
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9
src/devices/bus/isa/aha1542c.cpp
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@ -99,6 +99,13 @@ Adaptec AHA-1540CF/1542CF Installation Guide
http://download.adaptec.com/pdfs/installation_guides/aha1540cf_ig.pdf
*/
/*
Adaptec QFP ASICs
— AHA-1540/42C: AIC-???? (covered by sticker)
— AHA-1540/42CP: AIC-7970Q
— AHA-1540/42CF: AIC-3370P, AIC-???? (covered by sticker)
*/
#include "emu.h"
#include "aha1542c.h"
#include "cpu/z80/z80.h"
@ -141,7 +148,7 @@ http://download.adaptec.com/pdfs/installation_guides/aha1540cf_ig.pdf
#define CMD_NOP 0x00 // No operation
#define CMD_MBINIT 0x01 // mailbox initialization
#define CMD_START_SCSI 0x02 // Start SCSI command
#define CMD_BIOSCMD 0x03 // undocumented BIOS conmmand (shadow RAM etc.)
#define CMD_BIOSCMD 0x03 // undocumented BIOS command (shadow RAM etc.)
#define CMD_INQUIRY 0x04 // Adapter inquiry
#define CMD_EMBOI 0x05 // enable Mailbox Out Interrupt
#define CMD_SELTIMEOUT 0x06 // Set SEL timeout