Toshiba T3200 User Manual page 183

E.3 SIGNAL DESCRIPTION AND PIN ASSIGNMENT
TABLE E-1 Pin Description
Pin I/O Signal Name
Descri pti
0
n
1 I RSET
Reset signal. This signal is active high.
2 GND
Ground
3
I
EXTND
Extended memory access disable select.
4
I M512K
Conventional memory 512 Kbytes/640 kbytes
select
5
I
SBHE
Bus hiqh enable siqnal.
6
I
BALE
Address latch enable signal.
7
I
REFRSH
Refresh signal.
8
I
DMACK
DMA acknowledge signal.
9
I
MEMR Memory read command
10 I
XIOR I/O read command
11
I
XIOW
liD write command
12
GND Ground
13 0
EA20 Unlatched MA20
14
0
EA21 Unlatched MA21
15
I
SA16 Address bus 16
16 I
SA15
Address bus 15
17 I SA14 Address bus 14
18
I
SA13 Address bus 13
19 I SA12 Address bus 12
20
I
SA 11
Address bus 11
21 I
SA10
Address bus 10
22 I
SA09 Address bus 09
23
GND
Ground
24 I
SA08 Address bus 08
25 I SA07 Address bus 07
26
I
SA06 Address bus 06
27 I
SAOs
Address bus 05
28
I
SA04
Address bus 04
29 I
SA03
Address bus 03
30
I
SA02 Address bus 02
31 I SA01 Address bus 01
32
I
SAOO
Address bus 00
33
Vcc +5v
34 I/O SDO Data bus 0
35 liD SD1 Data bus 1
36 liD SD2 Data bus 2
E-3