APPENDIX A LIST OF I/O REGISTERS
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
AP-A-55
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
DMAC Trigger
Flag Register
(DMAC_TRG_
FLG)
0x302110
(32 bits)
D31–8 –
reserved
–
–
–
0 when being read.
D7
TRG7
Ch.7 software trigger/trigger status 1
(W)
Soft trigger
0
(W)
Ignored
0
R/W
D6
TRG6
Ch.6 software trigger/trigger status
0
R/W
D5
TRG5
Ch.5 software trigger/trigger status
0
R/W
D4
TRG4
Ch.4 software trigger/trigger status
0
R/W
D3
TRG3
Ch.3 software trigger/trigger status
(R)
Triggered
(R)
Not triggered
0
R/W
D2
TRG2
Ch.2 software trigger/trigger status
0
R/W
D1
TRG1
Ch.1 software trigger/trigger status
0
R/W
D0
TRG0
Ch.0 software trigger/trigger status
0
R/W
DMAC End-of-
Transfer Flag
Register
(DMAC_END_
FLG)
0x302114
(32 bits)
D31–8 –
reserved
–
–
–
0 when being read.
D7
ENDF7
Ch.7 end-of-transfer flag
1 Finished
0 Not finished
0
R/W Reset by writing 1.
D6
ENDF6
Ch.6 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
D5
ENDF5
Ch.5 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
D4
ENDF4
Ch.4 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
D3
ENDF3
Ch.3 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
D2
ENDF2
Ch.2 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
D1
ENDF1
Ch.1 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
D0
ENDF0
Ch.0 end-of-transfer flag
1 Finished
0 Not finished
0
R/W
DMAC Running
Status Register
(DMAC_RUN_
STAT)
0x302118
(32 bits)
D31–8 –
reserved
–
–
–
0 when being read.
D7
RUN7
Ch.7 running status
1 Running
0 Idle/paused
0
R
D6
RUN6
Ch.6 running status
1 Running
0 Idle/paused
0
R
D5
RUN5
Ch.5 running status
1 Running
0 Idle/paused
0
R
D4
RUN4
Ch.4 running status
1 Running
0 Idle/paused
0
R
D3
RUN3
Ch.3 running status
1 Running
0 Idle/paused
0
R
D2
RUN2
Ch.2 running status
1 Running
0 Idle/paused
0
R
D1
RUN1
Ch.1 running status
1 Running
0 Idle/paused
0
R
D0
RUN0
Ch.0 running status
1 Running
0 Idle/paused
0
R
DMAC Pause
Status Register
(DMAC_
PAUSE_STAT)
0x30211c
(32 bits)
D31–8 –
reserved
–
–
–
0 when being read.
D7
PAUSE7
Ch.7 pause status
1 Paused
0 Not paused
0
R
D6
PAUSE6
Ch.6 pause status
1 Paused
0 Not paused
0
R
D5
PAUSE5
Ch.5 pause status
1 Paused
0 Not paused
0
R
D4
PAUSE4
Ch.4 pause status
1 Paused
0 Not paused
0
R
D3
PAUSE3
Ch.3 pause status
1 Paused
0 Not paused
0
R
D2
PAUSE2
Ch.2 pause status
1 Paused
0 Not paused
0
R
D1
PAUSE1
Ch.1 pause status
1 Paused
0 Not paused
0
R
D0
PAUSE0
Ch.0 pause status
1 Paused
0 Not paused
0
R
0x302200–0x302210
SDRAM Controller (SDRAMC)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
SDRAM
Initialization
Register
(SDRAMC_INIT)
0x302200
(32 bits)
D31–5 –
reserved
–
–
–
0 when being read.
D4
SDON
SDRAM controller enable
1 Enable
0 Disable
0
R/W
D3
INIDO
SDRAM initialization status
1 Finished
0 Busy
0
R
D2
INIMRS
MRS command enable for init.
1 Enable
0 Disable
0
R/W
D1
INIPRE
PALL command enable for init.
1 Enable
0 Disable
0
R/W
D0
INIREF
REF command enable for init.
1 Enable
0 Disable
0
R/W
SDRAM
Configuration
Register
(SDRAMC_CFG)
0x302204
(32 bits)
D31–14 –
reserved
–
–
–
0 when being read.
D13–12 T24NS[1:0] Number of SDRAM t
RP
and t
RCD
cycles
T24NS[1:0]
# of cycles
0x0 R/W
0x3
0x2
0x1
0x0
4 cycles
3 cycles
2 cycles
1 cycle
D11
–
reserved
–
–
–
0 when being read.
D10–8 T60NS[2:0] Number of SDRAM t
RAS
cycles
T60NS[2:0]
# of cycles
0x0 R/W
0x7
0x6
:
0x1
0x0
8 cycles
7 cycles
:
2 cycles
1 cycle
D7–4 T80NS[3:0] Number of SDRAM t
RC
, t
RFC
and
t
XSR
cycles
T80NS[3:0]
# of cycles
0xe R/W
0xf
0xe
:
0x1
0x0
16 cycles
15 cycles
:
2 cycles
1 cycle
D3
–
reserved
–
–
–
0 when being read.
D2–0 ADDRC[2:0] SDRAM address configuration
ADDRC[2:0]
Configuration 0x0 R/W Do not set to 0x4.
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
512M bits
128M bits x 2
64M bits x 2
reserved
256M bits
128M bits
64M bits
16M bits