II CORE BLOCK: BCU (Bus Control Unit)
S1C33L03 FUNCTION PART
EPSON
B-II-4-37
A-1
B-II
BCU
Name
Address
Register name
Bit
Function
Setting
Init.
R/W
Remarks
1 Successive 0 Normal
–
A3EEN
CEFUNC1
CEFUNC0
CRAS
RPRC1
RPRC0
–
CASC1
CASC0
–
RASC1
RASC0
DF–C
DB
DA
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
reserved
Area 3 emulation
#CE pin function selection
Successive RAS mode setup
DRAM
RAS precharge cycles selection
reserved
DRAM
CAS cycles selection
reserved
DRAM
RAS cycles selection
–
–
1
0
0
0
0
0
–
0
0
–
0
0
–
R/W
R/W
R/W
R/W
–
R/W
–
R/W
0 when being read.
0 when being read.
0 when being read.
0048130
(HW)
1
0
0
x
1
0
CEFUNC[1:0]
#CE output
#CE7/8..#CE17/18
#CE6..#CE17
#CE4..#CE10
1
1
0
0
1
0
1
0
RPRC[1:0] Number of cycles
4
3
2
1
–
1
1
0
0
1
0
1
0
CASC[1:0] Number of cycles
4
3
2
1
–
1
1
0
0
1
0
1
0
RASC[1:0] Number of cycles
4
3
2
1
DRAM timing
set-up register
1 Internal ROM 0 Emulation
–
1 Internal
access
0 External
access
1 Internal
access
0 External
access
1 Big endian
0 Little endian
A18IO
A16IO
A14IO
A12IO
–
A8IO
A6IO
A5IO
A18EC
A16EC
A14EC
A12EC
A10EC
A8EC
A6EC
A5EC
DF
DE
DD
DC
DB
DA
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Area 18, 17 internal/external access
Area 16, 15 internal/external access
Area 14, 13 internal/external access
Area 12, 11 internal/external access
reserved
Area 8, 7 internal/external access
Area 6 internal/external access
Area 5, 4 internal/external access
Area 18, 17 endian control
Area 16, 15 endian control
Area 14, 13 endian control
Area 12, 11 endian control
Area 10, 9 endian control
Area 8, 7 endian control
Area 6 endian control
Area 5, 4 endian control
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
–
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0 when being read.
0048132
(HW)
Access control
register
–
1 Enabled
0 Disabled
1 Enabled
0 Disabled
A18AS
A16AS
A14AS
A12AS
–
A8AS
A6AS
A5AS
A18RD
A16RD
A14RD
A12RD
–
A8RD
A6RD
A5RD
DF
DE
DD
DC
DB
DA
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Area 18, 17 address strobe signal
Area 16, 15 address strobe signal
Area 14, 13 address strobe signal
Area 12, 11 address strobe signal
reserved
Area 8, 7 address strobe signal
Area 6 address strobe signal
Area 5, 4 address strobe signal
Area 18, 17 read signal
Area 16, 15 read signal
Area 14, 13 read signal
Area 12, 11 read signal
reserved
Area 8, 7 read signal
Area 6 read signal
Area 5, 4 read signal
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
–
R/W
R/W
R/W
R/W
R/W
R/W
R/W
–
R/W
R/W
R/W
0 when being read.
0 when being read.
0048138
(HW)
G/A read signal
control register
–
1 Enabled
0 Disabled
1 Enabled
0 Disabled
–
A1X1MD
–
BCLKSEL1
BCLKSEL0
D7–4
D3
D2
D1
D0
reserved
Area 1 access-speed
reserved
BCLK output clock selection
1
1
0
0
1
0
1
0
BCLKSEL[1:0]
–
–
BCLK
PLL_CLK
OSC3_CLK
BCU_CLK
CPU_CLK
0
0
0
0
0
–
R/W
–
R/W
0 when being read.
x2 speed mode only
0 when being read.
004813A
(B)
BCLK select
register
1 2 cycles
0 4 cycles
Summary of Contents for CMOS 32-Bit Single Chip Microcomputer S1C33L03
Page 4: ......
Page 14: ......
Page 15: ...S1C33L03 PRODUCT PART ...
Page 16: ......
Page 147: ...S1C33L03 FUNCTION PART ...
Page 148: ......
Page 149: ...S1C33L03 FUNCTION PART I OUTLINE ...
Page 150: ......
Page 152: ...I OUTLINE INTRODUCTION B I 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 162: ...I OUTLINE LIST OF PINS B I 3 8 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 163: ...S1C33L03 FUNCTION PART II CORE BLOCK ...
Page 164: ......
Page 166: ...II CORE BLOCK INTRODUCTION B II 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 172: ...II CORE BLOCK CPU AND OPERATING MODE B II 2 6 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 176: ...II CORE BLOCK INITIAL RESET B II 3 4 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 224: ...II CORE BLOCK BCU Bus Control Unit B II 4 48 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 262: ...II CORE BLOCK DBG Debug Unit B II 7 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 263: ...S1C33L03 FUNCTION PART III PERIPHERAL BLOCK ...
Page 264: ......
Page 266: ...III PERIPHERAL BLOCK INTRODUCTION B III 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 322: ...III PERIPHERAL BLOCK WATCHDOG TIMER B III 5 4 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 415: ...S1C33L03 FUNCTION PART IV ANALOG BLOCK ...
Page 416: ......
Page 418: ...IV ANALOG BLOCK INTRODUCTION B IV 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 434: ...IV ANALOG BLOCK A D CONVERTER B IV 2 16 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 435: ...S1C33L03 FUNCTION PART V DMA BLOCK ...
Page 436: ......
Page 438: ...V DMA BLOCK INTRODUCTION B V 1 2 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 492: ...V DMA BLOCK IDMA Intelligent DMA B V 3 18 EPSON S1C33L03 FUNCTION PART THIS PAGE IS BLANK ...
Page 493: ...S1C33L03 FUNCTION PART VI SDRAM CONTROLLER BLOCK ...
Page 494: ......
Page 531: ...S1C33L03 FUNCTION PART VII LCD CONTROLLER BLOCK ...
Page 532: ......
Page 579: ...S1C33L03 FUNCTION PART Appendix I O MAP ...
Page 580: ......