
II CORE BLOCK: BCU (Bus Control Unit)
B-II-4-46
EPSON
S1C33210 FUNCTION PART
A1X1MD: Area 1 access speed (D3) / BCLK select register (0x4813A)
Select a number of access cycles for area 1 in
×
2 speed mode.
Write "1": 2 cycles
Write "0": 4 cycles
Read: Valid
When
×
2 speed mode is set (#X2SPD pin = L) and A1X1MD = "1", area 1 is read/written in 2 cycles of the CPU
system clock.
When A1X1MD = "0", area 1 is read/written in 4 cycles.
When x1 speed mode is set (#X2SPD pin = H), area 1 is always accessed in 2 cycles regardless of the A1X1MD
value.
At cold start, A1X1MD is set to "0" (4 cycles). At hot start, A1X1MD retains its status before being initialized.
Programming Notes
The S1C33210 maps the mobile access interface registers to memory area 5. Accessing these registers therefore
requires setting two bits to "1": A5IO, bit 8 in the access control register (0x0048132), and SWAITE, bit 0 in the bus
control register (0x0048132). The latter setting enables the internal #WAIT signal.
Summary of Contents for S1C33210
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Page 13: ...S1C33210 PRODUCT PART ...
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Page 124: ...APPENDIX B PIN CHARACTERISTICS A 110 EPSON S1C33210 PRODUCT PART THIS PAGE IS BLANK ...
Page 125: ...S1C33210 FUNCTION PART ...
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Page 127: ...S1C33210 FUNCTION PART I OUTLINE ...
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Page 130: ...I OUTLINE INTRODUCTION B I 1 2 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 138: ...I OUTLINE LIST OF PINS B I 3 6 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 139: ...S1C33210 FUNCTION PART II CORE BLOCK ...
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Page 142: ...II CORE BLOCK INTRODUCTION B II 1 2 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 148: ...II CORE BLOCK CPU AND OPERATING MODE B II 2 6 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 152: ...II CORE BLOCK INITIAL RESET B II 3 4 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 234: ...II CORE BLOCK CLG Clock Generator B II 6 10 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 236: ...II CORE BLOCK DBG Debug Unit B II 7 2 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 237: ...S1C33210 FUNCTION PART III PERIPHERAL BLOCK ...
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Page 296: ...III PERIPHERAL BLOCK WATCHDOG TIMER B III 5 4 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 429: ...S1C33210 FUNCTION PART IV ANALOG BLOCK ...
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Page 448: ...IV ANALOG BLOCK A D CONVERTER B IV 2 16 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 449: ...S1C33210 FUNCTION PART V DMA BLOCK ...
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Page 506: ...V DMA BLOCK IDMA Intelligent DMA B V 3 18 EPSON S1C33210 FUNCTION PART THIS PAGE IS BLANK ...
Page 507: ...S1C33210 FUNCTION PART Appendix I O MAP ...
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