VT82C686B
General Purpose Outputs
Signal Name
Pin # I/O Signal Description
(H) / SLOWCLK
T8
O
(Function 4 Rx54[1-0] = 00). Output value
General Purpose Output 0
GPO0
determined by PMU I/O Rx4C[0]
(H) / SUSA# / APICACK#
(H) / SUSB# / APICCS#
/ SUSST1# (H)
/ CPUSTP# (L)
/ PCISTP# (L)
V9
W9
V10
Y12
V12
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
(Rx74[7] = 0 and Function 4 Rx54[2] = 1)
GPO1
GPO2
GPO3
GPO4
GPO5
GPO6
GPO7
GPO8
GPO9
GPO10
GPO11
GPO12
GPO13
GPO14
GPO15
GPO16
GPO17
GPO18
GPO19
General Purpose Output 1
General Purpose Output 2
General Purpose Output 3
General Purpose Output 4
General Purpose Output 5
General Purpose Output 6
General Purpose Output 7
General Purpose Output 8
General Purpose Output 9
General Purpose Output 10
General Purpose Output 11
General Purpose Output 12
General Purpose Output 13
General Purpose Output 14
General Purpose Output 15
General Purpose Output 16
General Purpose Output 17
General Purpose Output 18
General Purpose Output 19
(Rx74[7] = 0 and Function 4 Rx54[3] = 1)
(Function 4 Rx54[4] = 1)
(Rx75[4] = 1)
(Rx75[5] = 1)
(Rx75[6] = 1)
(Rx75[7] = 1)
(Rx74[2] = 1 and Rx76[0] = 0)
(Rx74[3] = 1)
(Rx74[4] = 1 and Rx76[2] = 0)
(Rx74[5] = 1 and Rx76[3] = 0)
(Rx76[1] = 1 and Rx76[4] = 0)
(Rx77[0] = 1) see also Rx76[4-3]
(Rx76[5] = 1)
/ SLP# (OD)
/ GPI8 / GPIOA / GPOWE#
/ GPI9 / GPIOB / FAN2
T7
T14
U12
/ GPI10 / GPIOC/CHAS/IRQ0 V14
/ GPI11 / GPIOD / MCCS#
/ XDIR (H) / PCS0#
/ SOE# (L) / MCCS#
/ IRTX (L)
/ IRRX (L)
/ DACK0#
/ DACK1#
/ DACK3#
/ DACK5#
U8
T5
U5
E12
D12
L2
E1
D2
L4
(Rx76[5] = 1)
(Rx77[7] = 1 and Rx77[3] = 0)
(Rx77[7] = 1 and Rx77[3] = 0)
(Rx77[7] = 1 and Rx77[3] = 0)
(Rx77[7] = 1, Rx77[3] = 0 and Rx74[6] = 0)
/ SERIRQ / MC97IRQ
/ DACK6#
M3
O
O
O
O
O
(Rx77[7] = 1 and Rx77[3] = 0)
(Rx77[7] = 1, Rx77[3] = 0, F4Rx57[0] = 0)
(Rx77[6] = 1, game disabled)
(Rx77[6] = 1, game disabled)
(Rx75[3] = 1 & Rx75[1]=1 & Rx68[3]=0)
GPO20
GPO21
GPO22
GPO23
GPO24
General Purpose Output 20
General Purpose Output 21
General Purpose Output 22
General Purpose Output 23
General Purpose Output 24
/DACK7#/THRM#/USBIRQB N2
/ JAY
/ JAX
/ DRQ2 (H)
Y15
V15
H3
/ FDCDRQ
/ USBOC1# / SERIRQ
/ DACK2# (H)
/ FDCIRQ
G5
O
(Rx75[3] = 1 & Rx75[2]=1 & Rx68[3]=0)
GPO25
General Purpose Output 25
/ USBOC0#
(latched from SD[7-0])
/ GPIOA / GPI8 / GPO8
n/a
T14
O
O
(Rx74[7]=0) latched by GPOWE# rising
General Purpose Output 23-16
GPO[23-16]
GPOWE#
(Rx74[2] = 1 and Rx76[0] = 1).
General Purpose Output Write Enable
Default pin functions are underlined in table above (with default level following in parentheses)
See also Function 0 Rx77[7-6]
General Purpose I/Os
Signal Name
Pin # I/O Signal Description
/ GPI8 / GPO8 / GPOWE#
T14
U12
V14
U8
IO
IO
IO
IO
(Rx76[0] = 0). GPOWE# if Rx76[0] = 1. See
See also Rx74[3]
GPIOA
GPIOB
GPIOC
GPIOD
General Purpose I/O A / 8
also Rx74[2]
General Purpose I/O B / 9.
/ GPI9 / GPO9 / FAN2
/ DTEST
/ GPI10 / GPO10 / CHAS
/ IRQ0 / ATEST
(Rx76[2] = 0). See also Rx74[4]
(Rx76[3] = 0). See also Rx74[5]
General Purpose I/O C / 10.
General Purpose I/O D / 11.
/ GPI11 / GPO11 / MCCS#
Revision 1.71 June 9, 2000
-23-
Pinouts
ETC [ ETC ]
