AMD-766 Advanced Micro Devices, AMD-766 Datasheet - Page 83

• Manufacturer Part Number: AMD-766
• Description: Peripheral Bus Controller
• Manufacturer: Advanced Micro Devices

23167B – March 2001
GPIO
name
GPIO[0]
GPIO[1]
GPIO[2]
GPIO[3]
GPIO[4]
GPIO[5]
GPIO[6]
GPIO[7]
GPIO[8]
GPIO[9]
GPIO[10]
GPIO[11]
GPIO[12]
GPIO[13]
GPIO[14]
GPIO[15]
GPIO[16]
GPIO[17]
GPIO[18]
GPIO[19]
GPIO[20]
GPIO[21]
GPIO[22]
GPIO[23]
GPIO[24]
GPIO[25]
GPIO[26]
GPIO[27]
GPIO[28]
GPIO[29]
GPIO[30]
GPIO[31]
Note 1: The output of the input path for GPIO[17, 16, 3, 2] is also routed to the IOAPIC to drive the interrupt
Note 2: PMC0, PMC1, PMC3, PMCC, and PMCE all reside on the VDD_AUX power plane.
Note 3: If PMF5 does not select the BMREQ# function, then IRQ[11:9, 7:3] are selected to be the REQ[7:0]#
PMD4: GPIO Pin Interrupt Status Register
IO mapped (base pointer: C3A58); offset: D7-D4h. Default: 0000_0000h. Read; set by hardware; write 1 to clear.
Each of these status bits is driven by the output of the input circuit associated with the GPIO pins. Bit[0] corresponds
to GPIO 0; bit[1] corresponds to GPIO1, and so forth. The latch associated with each GPIO input circuit is cleared
when the corresponding bit in this register is written with a 1; writing a 0 has no effect.
31:0
GPIO IRQ status bits
request inputs to some of the redirection register entries (see section 4.3.4.2.2). These signals, to the
IOAPIC, are never disabled, even if the alternate function is selected.
function.
Control
register
PMC0
PMC1
PMC2
PMC3
PMC4
PMC5
PMC6
PMC7
PMC8
PMC9
PMCA
PMCB
PMCC
PMCD
PMCE
PMCF
PMD0
PMD1
PMD2
PMD3
PMF4
PMF5
PMF6
PMF7
PMF8
PMF9
PMFA
PMFB
PMFC
PMFD
PMFE
PMFF
Signal Name Default
SMBUSC
SMBUSD
GPIO2
SLPBTN#
SUSPEND#
CPUSLEEP# 05h (GPIO output, high) 1xb
CPUSTOP#
PCISTOP#
CACHE_ZZ
GPIO9
FLAGWR
FLAGRD#
EXTSMI#
PRDY
RI#
C32KHZ
INTIRQ8#
GPIO17
GPIO18
GPIO19
GPIO20
GPIO21
GPIO22
GPIO23
GPIO24
GPIO25
GPIO26
GPIO27
GPIO28
GPIO29
GPIO30
GPIO31
08h (SMBUSC)
08h (SMBUSD)
00h (GPIO input)
0Ch (SLPBTN#)
08h (SUSPEND#)
05h (GPIO output, high) 1xb
05h (GPIO output, high) 1xb
04h (GPIO output, low)
05h (GPIO output, high)
04h (GPIO output, low)
05h (GPIO output, high) 1xb
0Ch (EXTSMI#)
0Ch (No function)
08h (RI#)
04h (GPIO output, low)
05h (GPIO output, high) 10b
00h (GPIO input)
00h (GPIO input)
00h (GPIO input)
00h (GPIO input)
08h (BMREQ#)
05h (GPIO output, high) 1xb
05h (GPIO output, high) 1xb
05h (GPIO output, high)
04h (GPIO output, low)
04h (GPIO output, low)
04h (GPIO output, low)
00h (GPIO input)
00h (GPIO input)
00h (GPIO input)
00h (GPIO input)
Preliminary Information
AMD-766
MODE Alternate Functions
1xb
1xb
1xb
1xb
1xb
1xb
1xb
10b
11b
1xb
1xb
11b
1xb
1xb
1xb
1xb
SMBUSC
SMBUSD
SLPBTN#
SUSPEND#
CPUSLEEP#
CPUSTOP#
PCISTOP#
CACHE_ZZ
FLAGWR
FLAGRD#
EXTSMI#
PRDY
No function (input)
RI#
C32KHZ
INTIRQ8#
SQWAVE
PNPIRQ0
PNPIRQ1
PNPIRQ2
BMREQ#
PNPCS0#
PNPCS1#
TM
Peripheral Bus Controller Data Sheet
Direct
Direct
Direct
Direct
Input
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
Path
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
Notes
1, 2
2
2
1
2
2
3
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