APPENDIX A LIST OF I/O REGISTERS
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
AP-A-57
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
#CE[10:8]
Access Timing
Configuration
Register
(SRAMC_
TMG810)
0x302224
(32 bits)
D31–24 –
reserved
–
–
–
1 when being read.
D23–22 CE10SETUP
[1:0]
#CE10 setup cycle
CE10SETUP[1:0] Setup cycle
0x3 R/W
0x3
0x2
0x1
0x0
4 cycles
3 cycles
2 cycles
1 cycle
D21–20 CE10HOLD
[1:0]
#CE10 hold cycle
CE10HOLD[1:0]
Hold cycle
0x3 R/W
0x3
0x2
0x1
0x0
4 cycles
3 cycles
2 cycles
1 cycle
D19–16 CE10WAIT
[3:0]
#CE10 static wait cycle
CE10WAIT[3:0]
Wait cycle
0xf R/W
0xf
0xe
:
0x1
0x0
15 cycles
14 cycles
:
1 cycle
0 cycles
D15–14 CE9SETUP
[1:0]
#CE9 setup cycle
CE9SETUP[1:0] Setup cycle
0x3 R/W
0x3
:
0x0
4 cycles
:
1 cycle
D13–12 CE9HOLD
[1:0]
#CE9 hold cycle
CE9HOLD[1:0]
Hold cycle
0x3 R/W
0x3
:
0x0
4 cycles
:
1 cycle
D11–8 CE9WAIT
[3:0]
#CE9 static wait cycle
CE9WAIT[3:0]
Wait cycle
0xf R/W
0xf
:
0x0
15 cycles
:
0 cycles
D7–6 CE8SETUP
[1:0]
#CE8 setup cycle
CE8SETUP[1:0] Setup cycle
0x3 R/W
0x3
:
0x0
4 cycles
:
1 cycle
D5–4 CE8HOLD
[1:0]
#CE8 hold cycle
CE8HOLD[1:0]
Hold cycle
0x3 R/W
0x3
:
0x0
4 cycles
:
1 cycle
D3–0 CE8WAIT
[3:0]
#CE8 static wait cycle
CE8WAIT[3:0]
Wait cycle
0xf R/W
0xf
:
0x0
15 cycles
:
0 cycles
#CE[10:4]
Device
Configuration
Register
(SRAMC_TYPE)
0x302228
(32 bits)
D31–14 –
reserved
–
–
–
0 when being read.
D13–12 CE10TYPE
[1:0]
#CE10 device type
CE
x
TYPE[1:0]
Device type
0x0 R/W
0x3–0x2
0x1
0x0
8-bit device
16-bit BSL type
16-bit A0 type
D11–10 CE9TYPE
[1:0]
#CE9 device type
0x0 R/W
D9–8 CE8TYPE
[1:0]
#CE8 device type
0x0 R/W
D7–6 CE7TYPE
[1:0]
#CE7 device type
0x0 R/W
D5–4 –
reserved
–
–
–
0 when being read.
D3–2 CE5TYPE
[1:0]
#CE5 device type
CE
x
TYPE[1:0]
Device type
0x0 R/W
0x3–0x2
0x1
0x0
8-bit device
16-bit BSL type
16-bit A0 type
D1–0 CE4TYPE
[1:0]
#CE4 device type
0x0 R/W
0x302300–0x302360
Cache Controller (CCU)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
Cache
Configuration
Register
(CCU_CFG)
0x302300
(32 bits)
D31–9 –
reserved
–
–
–
0 when being read.
D8
WBEN
Write buffer enable
1 Enable
0 Disable
1
R/W
D7–4 –
reserved
–
–
–
0 when being read.
D3
–
reserved
–
–
–
Do not set to 1.
D2
SBRK
Software break enable
1 Enable
0 Disable
1
R/W
D1
IC
Instruction cache enable
1 Enable
0 Disable
0
R/W
D0
DC
Data cache enable
1 Enable
0 Disable
0
R/W