Table 20. Multiplexed Pin Configuration Options (Continued)
Signal You Want Signals You Give Up How to Configure the Signal You Want on the Pin
Pin #
W17
Y17
GPIO_CS11
GPIO_CS12
GPIO_CS13
GPIO_CS14
Parallel Port
ACK
PDACK0
Clear CSC index 38h[0].
Clear CSC index 38h[0].
Clear CSC index 39h[5].
Clear CSC index 39h[5].
PDRQ0
PCMA_VCC1
PCMA_VPP11
V16
W16
GPIO25, BVD1_B1
GPIO30, MCEH_B1
GPIO24, BVD2_B1
GPIO27, CD_B1
GPIO28, REG_B1
GPIO26, RDY_B1
GPIO21
Write CSC index 39h[1–0] to 10.
U2
W1
U3
V4
Y2
W2
V3
T3
AFDT
BUSY
ERROR
INIT
PE
PPDWE
PPOEN
GPIO22
SLCT
GPIO23, WP_B1
GPIO29, RST_B1
GPIO31, MCEL_B1
U4
W3
V2
SLCTIN
STRB
Keyboard Interface
KBD_COL0
KBD_COL1
KBD_COL2
KBD_COL3
KBD_COL4
KBD_COL5
KBD_COL6
KBD_ROW0
KBD_ROW1
KBD_ROW2
KBD_ROW3
KBD_ROW4
KBD_ROW5
KBD_ROW6
KBD_ROW7
KBD_ROW8
KBD_ROW9
KBD_ROW10
KBD_ROW11
KBD_ROW12
KBD_ROW13
XT_DATA
XT_CLK
PIRQ3
PIRQ4
PIRQ5
PIRQ6
PIRQ7
CASL2
CASL3
CASH2
CASH3
RAS2
Clear CSC index 39h[3].
Clear CSC index 39h[3].
Clear CSC index 3Ah[1].
Clear CSC index 3Ah[1].
Clear CSC index 3Ah[1].
Clear CSC index 3Ah[1].
Clear CSC index 3Ah[1].
E2
D1
A2
B3
C3
A1
B2
Clear CSC index 00h[7] and 00h[3], or
clear CSC index 01h[7] and 01h[3], or
clear CSC index 02h[7], or
B19
D16
C17
B18
D15
C16
B17
D3
clear CSC index 03h[7].
RAS3
MA12
PDACK1
PDRQ1
PIRQ2
BALE
Clear CSC index 39h[2].
Clear CSC index 39h[2].
Clear CSC index 39h[2].
Clear CSC index 39h[2].
Clear CSC index 39h[2].
Clear CSC index 39h[2].
C2
E3
D2
SBHE
C1
MCS16
R32BFOE
F3
Do not enable the 32-bit ROM interface on ROMCS0 (e.g., do not
hardwire-strap both the CFG1 and CFG0 pins High).
A3
XT_CLK
KBD_COL1
KBD_COL0
Clear CSC index 39h[3].
Clear CSC index 39h[3].
D1
E2
XT_DATA
PC Card (ÉlanSC400 Microcontroller Only)
BVD1_B1
BVD2_B1
CD_A2 1
CD_B1
GPIO25, ACK
GPIO24, BUSY
GPIO20
Write CSC index 39h[1–0] to 01.
Write CSC index 39h[1–0] to 01.
Set CSC index 3Ah[0].
U2
U3
G18
V4
GPIO27, ERROR
GPIO19
Write CSC index 39h[1–0] to 01.
Set CSC index 39h[4].
LBL21
V14
N3
MCEH_A1
MCEH_B1
MCEL_A1
BNDSCN_TMS
GPIO30, AFDT
BDNSCN_TCK
Pull the BNDSCN_EN pin Low.
Write CSC index 39h[1–0] to 01.
Pull the BNDSCN_EN pin Low.
W1
P2
72
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
AMD [ AMD ]
