Instruction manual

P
PAL entry point priority, 10–4
PALcode
entering, 17–1 to 17–2
entry points list, 17–2
INTERRUPT, 17–6
machine check, 17–5 to 17–6
MACHINE_RESET, 17–5
overview, 12–4
revision quadword, figure, 16–42
supported CALL_PAL instructions, 17–2 to
17–5
PASSWORD keyword, 16–23
Physical address, CPU-generated, 2–7 to 2–8
Physical DMA, programming requirements, 9–3
Pins, interrupt, 10–15
PixelMask register, SFB ASIC, 6–14
PixelShift register, SFB ASIC, 6–15
Planemask register, SFB ASIC, 6–12
Power on
initialization code overview, 12–3
initialization flow, 14–1 to 14–5
initialization flow, figure, 14–1
Power-on
figure of memory map following initialization,
14–6
POWERUP_TIME keyword, 16–24, 16–29
Predefined environment variables, 16–20 to 16–25
PRINTENV console command, 16–25
Printer port receive DMA pointer, 7–8
Printer port transmit DMA pointer, 7–8
Privileged
console commands, 16–31
console state, exi, 16–32
Processor initialization, 11–1 to 11–3
power-on reset, 11–2
SROM sequence, 11–2
SYSROM sequence, 11–2
Processor initialization block diagram, 11–1
PROCESS_KEYCODE, console service routine,
16–64
PUTS, console service routine, 16–65
R
RTC, see real-time clock
RADIX keyword, 16–22
RAMDAC Bt459, 6–20 to 6–23
color map and control registers, 6–20
cursor operation, 6–23
updating color map, 6–23
updating control registers, 6–23
Raster op register, SFB ASIC, 6–13
READ, console service routine, 16–66
Real-time clock, 9–13
Registers, CPU, 2–9 to 2–12
ABOX Control, 2–9 to 2–10
REPEAT console command, 16–19
RESETENV, console service routine, 16–68
RESET_TERM, console service routine, 16–69
ROM object format, figure, 13–5
RTC register addresses, 7–23
S
SCC, see serial communications controller
SCSI, see also dual SCSI
SDAx, see SCSI[x] DMA address register
SYSROM, see system ROM
Save residual byte bit, 9–16, 9–17
Scatter/gather map
DMA byte address conversion, figure, 5–2
format, 5–2 to 5–3
reading and writing, 5–3
SCC
register addresses, 7–21 to 7–22
signal connections, 9–12
SCC-0 DMA slot register, 7–17
SCC-1 DMA slot register, 7–17
SCSI
interface
determining oscillator frequency, 9–16
differences among models, 9–15
dual SCSI ASIC configuration, 9–15
programming requirements, 9–15 to 9–19
selecting fast or slow, 9–17
SCSI[x] DMA address register
TURBOchannel dual SCSI, 8–8
SCSI[x] DMA interrupt control register
TURBOchannel dual SCSI, 8–9
SCSI[x] DMA unaligned data[0] buffer
TURBOchannel dual SCSI, 8–10
SCSI[x] DMA unaligned data[1] buffer
TURBOchannel dual SCSI, 8–11
SCSI_A keyword, 16–23
SCSI_B keyword, 16–23
SCSI_RESET keyword, 16–23
SECURE keyword, 16–25
Security
console, 16–31
console password register, 16–31
exiting privileged state, 16–32
forgotten console password, 16–32
privileged console commands, 16–31
Self-test utilities, overview, 12–4
Serial communications controller, 9–10
Serial line baud rate, 9–10
SERVER keyword, 16–23
SETENV console command, 16–20
Index–6