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Bus Controller (BC)
8-8
~
~
~
~
~
~
~
~
8.6.1 Memory Block 0 Control Register
Memory control register 0A/B is used to set the memory block 0 read/write timing and synchronous/asynchronous
mode through software.
Memory control register 0A
Register symbol: MEMCTR0A
Address:
x’32000030
Purpose:
Sets the access timing, etc., for external memory space block 0.
Bit No.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
B0
name
REN4 REN3 REN2 REN1 REN0 BCE4 BCE3 BCE2 BCE1 BCE0 ADE1 ADE0 EA1
EA0 BCS1 BCS0
Reset
1
1
1
0
1
1
1
1
1
1
1
1
1
1
0
0
Access
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
R/W
Note: For the external memory access timing charts, refer to section 8.13, “External Memory Space Access (Non-
DRAM Spaces).”
Bit No.
Bit name
Description
Setting conditions
1 to 0
BCS1 to 0
Bus cycle start timing
00:
0MCLK
When
n
fr = 2, settings other than “00” or “01” are prohibited.
01:
1MCLK
When
n
fr = 1, settings other than “00” are prohibited.
10:
2MCLK
11: 3MCLK
3 to 2
EA1 to 0
RE/WE assert timing
00:
0MCLK
11:
3MCLK
5 to 4
ADE1 to 0
Address output end timing
00:
0MCLK
11:
3MCLK
10 to 6
BCE4 to 0
Bus cycle end timing
Settings other than those
Set so that:
shown below are prohibited.
BCE
≥
REN, BCE
≥
WEN
≥
EA
00100:
4MCLK
BCE
≥
ASN + ADE
11111: 31MCLK
15 to 11
REN4 to 0
RE negate timing
Settings other than those
shown below are prohibited
.
00100:
4MCLK
11111: 31MCLK
Note: nfr = MCLK frequency/SYSCLK frequency
Summary of Contents for MN103001G/F01K
Page 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Page 2: ......
Page 4: ......
Page 6: ......
Page 8: ......
Page 9: ...Table of Contents List of Figures and Tables 0 ...
Page 26: ...xviii ...
Page 27: ...1 0 1 General Specifications ...
Page 35: ...2 CPU 2 ...
Page 57: ...3 Extension Instruction Specifications 3 ...
Page 96: ...Extension Instruction Specifications 3 40 ...
Page 97: ...4 Memory Modes 3 4 ...
Page 102: ...Memory Modes 4 6 ...
Page 103: ...5 Operating Mode 5 ...
Page 107: ...6 Clock Generator 6 13 ...
Page 111: ...7 Internal Memory 7 ...
Page 114: ...Internal Memory 7 4 ...
Page 115: ...8 Bus Controller BC 8 ...
Page 189: ...9 Interrupt Controller 9 ...
Page 220: ...Interrupt Controller 9 32 ...
Page 221: ...10 8 bit Timers 9 10 ...
Page 254: ...8 bit Timers 10 34 ...
Page 255: ...11 16 bit Timers 11 ...
Page 292: ...16 bit Timers 11 38 ...
Page 293: ...12 Watchdog Timer 11 12 ...
Page 302: ...Watchdog Timer 12 10 ...
Page 303: ...13 Serial Interface 13 ...
Page 354: ...Serial Interface 13 52 ...
Page 355: ...14 A D Converter 14 ...
Page 367: ...15 I O Ports 15 ...
Page 431: ...16 Internal Flash Memory 16 ...
Page 439: ...17 17 Ordering Mask ROM ...
Page 442: ...Ordering Mask ROM 17 4 ...
Page 443: ...Appendix ...