Game Pak Bus - Nintendo 1504166 - Game Boy Advance SP Edition Console Programming Manual

AGB Programming Manual

3.3.2 Game Pak Bus

The Game Pak bus has a total of 32 terminals, which are described in the following table.
Game Pak ROM Access
No.
Terminal
1 VDD(3.3V)
2 PHI
3 /WR
4 /RD
5 /CS
6 AD0
7 AD1
8 AD2
9 AD3
10 AD4
11 AD5
12 AD6
13 AD7
14 AD8
15 AD9
16 AD10
17 AD11
18 AD12
19 AD13
20 AD14
21 AD15
22 A16
23 A17
24 A18
25 A19
26 A20
27 A21
28 A22
29 A23
30 /CS2
IREQ and
31
DREQ
32 GND
©1999 - 2001 Nintendo of America Inc.
Use
Write Flag
Read Flag
ROM Chip Selection
Terminals used for
both address(lower)
and data
Address(upper)
Terminal used for IREQ
and DREQ
24
Game Pak RAM Access
Terminal
VDD(3.3V)
PHI
/WR Write Flag
/RD Read Flag
/CS
A0
A1
A2
A3
A4
A5
A6
A7
Address
A8
A9
A10
A11
A12
A13
A14
A15
D0
D1
D2
D3
D4
D5
D6
D7
/CS2 RAM Chip Selection
IREQ and Terminal used for IREQ
DREQ and DREQ
GND
AGB Memory
Use
Data
D.C.N. AGB-06-0001-002B4