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1 OUTLINE
Pin name
Pin No.
QFP15-128
#CE4
35
#CE11
#CE11&12
#RD
24
#WRL
20
#WR
#WE
#WRH
21
#BSH
#HCAS
60
#LCAS
61
BCLK
4
P34
62
#BUSREQ
#CE6
P35
59
#BUSACK
P30
68
#WAIT
#CE4&5
P20
92
#DRD
P21
117
#DWE
#GAAS
P31
11
#BUSGET
#GARD
EA10MD1
115
EA10MD0
114
A-6
I/O
Pull-up
O
–
#CE4:
Area 4 chip enable when CEFUNC[1:0](D[A:9])/0x48130) = "00"
(default)
#CE11:
Area 11 chip enable when CEFUNC[1:0](D[A:9])/0x48130) = "01"
* When CEFUNC[1:0] = "1x", this pin outputs #CE11+#CE12 signal.
O
–
Read signal
O
–
#WRL:
Write (low byte) signal when SBUSST(D3/0x4812E) = "0" (default)
#WR:
Write signal when SBUSST(D3/0x4812E) = "1"
#WE:
DRAM write signal
O
–
#WRH:
Write (high byte) signal when SBUSST(D3/0x4812E) = "0"
(default)
#BSH:
Bus strobe (high byte) signal when SBUSST(D3/0x4812E) = "1"
O
–
#HCAS:
DRAM column address strobe (high byte) signal
O
–
#LCAS:
DRAM column address strobe (low byte) signal
O
–
Bus clock output
I/O
–
P34:
I/O port when CFP34(D4/0x402DC) = "0" (default)
#BUSREQ: Bus release request input when CFP34(D4/0x402DC) = "1"
#CE6:
Area 6 chip enable when CFP34(D4/0x402DC) = "1" and
IOC34(D4/0x402DE) = "1"
I/O
–
P35:
I/O port when CFP35(D5/0x402DC) = "0" (default)
#BUSACK: Bus acknowledge output when CFP35(D5/0x402DC) = "1"
I/O
–
P30:
I/O port when CFP30(D0/0x402DC) = "0" (default)
#WAIT:
Wait cycle request input when CFP30(D0/0x402DC) = "1"
#CE4&5:
Areas 4&5 chip enable when CFP30(D0/0x402DC) = "1" and
IOC30(D0/0x402DE) = "1"
I/O
–
P20:
I/O port when CFP20(D0/0x402D8) = "0" (default)
#DRD:
DRAM read signal output for successive RAS mode when
CFP20(D0/0x402D8) = "1"
I/O
–
P21:
I/O port when CFP21(D1/0x402D8) = "0" and
CFEX2(D2/0x402DF) = "0" (default)
#DWE:
DRAM read signal output for successive RAS mode when
CFP21(D1/0x402D8) = "1" and CFEX2(D2/0x402DF) = "0"
#GAAS:
Area address strobe for GA when CFEX2(D2/0x402DF) = "1"
I/O
–
P31:
I/O port when CFP31(D1/0x402DC) = "0" and
CFEX3(D3/0x402DF) = "0" (default)
#BUSGET: Bus status monitor signal output when CFP31(D1/0x402DC) = "1"
and CFEX3(D3/0x402DF) = "0"
#GARD:
Area read signal output for GA when CFEX3(D3/0x402DF) = "1"
I
Pull-up Area 10 boot mode selection
EA10MD1 EA10MD0
1
I
–
1
0
0
EPSON
Function
Mode
1
External ROM mode
0
–
1
–
0
–
S1C33210 PRODUCT PART
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