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Serial Interface
13-45
13.4.4 Description of Operation
■
UART Serial Interface connection
Two different connection methods are possible, one for unidirectional transfer, and the other for bi-directional
transfer.
The SBO pin is always an output, and the SBI pin is always an input.
Fig. 13-4-2 Connections
■
UART serial interface bit rate
The UART serial interface has an internal 7-bit dedicated counter that supports fast bit rates even with a comparatively
slow clock source.
For example, when IOCLK is being used and a transfer is being performed, the division ratio should be set as
follows:
Note: When an external clock signal is used as the clock source, the high and low widths of the external clock must
be at least 10, 5, or 2.5 SYSCLK cycles when (MCLK frequency/SYSCLK frequency) = 1, 2, or 4, respectively.
SBO
SBI
SBT
SBO
SBI
SBT
SBO
SBI
SBO
SBI
SBT
SBT
Reception
Transmission
Transmission/
reception
Transmission/
reception
External
clock
External
clock
Unidirectional transfer
Bi-directional transfer
Содержание MN103001G/F01K
Страница 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Страница 2: ......
Страница 4: ......
Страница 6: ......
Страница 7: ...14 A D Converter 15 I O Ports 16 Internal Flash Memory 17 Ordering Mask ROM Appendix 14 15 16 17 ...
Страница 8: ......
Страница 9: ...Table of Contents List of Figures and Tables 0 ...
Страница 26: ...xviii ...
Страница 27: ...1 0 1 General Specifications ...
Страница 35: ...2 CPU 2 ...
Страница 57: ...3 Extension Instruction Specifications 3 ...
Страница 96: ...Extension Instruction Specifications 3 40 ...
Страница 97: ...4 Memory Modes 3 4 ...
Страница 102: ...Memory Modes 4 6 ...
Страница 103: ...5 Operating Mode 5 ...
Страница 107: ...6 Clock Generator 6 13 ...
Страница 111: ...7 Internal Memory 7 ...
Страница 114: ...Internal Memory 7 4 ...
Страница 115: ...8 Bus Controller BC 8 ...
Страница 189: ...9 Interrupt Controller 9 ...
Страница 220: ...Interrupt Controller 9 32 ...
Страница 221: ...10 8 bit Timers 9 10 ...
Страница 254: ...8 bit Timers 10 34 ...
Страница 255: ...11 16 bit Timers 11 ...
Страница 292: ...16 bit Timers 11 38 ...
Страница 293: ...12 Watchdog Timer 11 12 ...
Страница 302: ...Watchdog Timer 12 10 ...
Страница 303: ...13 Serial Interface 13 ...
Страница 354: ...Serial Interface 13 52 ...
Страница 355: ...14 A D Converter 14 ...
Страница 367: ...15 I O Ports 15 ...
Страница 431: ...16 Internal Flash Memory 16 ...
Страница 439: ...17 17 Ordering Mask ROM ...
Страница 442: ...Ordering Mask ROM 17 4 ...
Страница 443: ...Appendix ...