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author AJR <ajrhacker@users.noreply.github.com>2020-07-18 14:08:26 -0400
committer AJR <ajrhacker@users.noreply.github.com>2020-07-18 14:08:26 -0400
commit5716df3b90022ff46abed1a8e6e24dc4f6a70908 (patch)
tree8fd35da2182a7faa1dda47df359c49fbf7de977c /src/devices/bus
parenta1bb5475cc1a6ce4c18f8a130a9f3f55c0669fc5 (diff)
aha1542c: ASIC note
Diffstat (limited to 'src/devices/bus')
-rw-r--r--src/devices/bus/isa/aha1542c.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/devices/bus/isa/aha1542c.cpp b/src/devices/bus/isa/aha1542c.cpp
index 82504c8e26e..de8e2f1fb65 100644
--- a/src/devices/bus/isa/aha1542c.cpp
+++ b/src/devices/bus/isa/aha1542c.cpp
@@ -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