
Serial Interface
13-12
<Reception>
• One-byte transfer with 8-bit data length and parity on
Fig. 13-2-5 Timing Chart (3)
• Two-byte transfer with 8-bit data length and parity off
Fig. 13-2-6 Timing Chart (4)
After reception end (when the SC0RBF flag is "1"), the received data is fetched by reading the SC0RXB.
In the case of a 7-bit transfer, the MSB (bit 7) is "0".
The SC0RXF flag is set to "1" at the start of reception (at the falling edge of SBT pin ), and is set to "0" at the end
of reception.
The SC0RBF flag is set to "1" at the end of reception, and is set to "0" when SC0RXB is read.
Sending dummy data makes it possible to receive data while supplying the clock from the microcomputer side. In
this case, interrupt requests are also generated by the transmission source. Receive data according to the following
procedure:
(1) Select the internal clock as the reference clock, and set the parity, character length, etc.
(2) Enable both the transmission operation and the receiving operation.
(3) When dummy data is written to the transmission buffer, the clock is sent and reception begins.
When using clock synchronous mode (2), set the SBO pin as a general-purpose input port before writing the
dummy data to the transmission buffer, and then reset the pin as the SBO pin after transmission is complete.
bp1 bp2 bp3 bp4 bp5 bp6
bp0
SBI pin
SBT pin
Interrupt request
SC0RXF flag
SC0RBF flag
Data read
bp1 bp2 bp3 bp4 bp5 bp6
bp0
bp7
bp7
bp1
bp2
bp3
bp4
bp5
bp6
bp7
bp0
SBI pin
SBT pin
Interrupt request
SC0RXF flag
SC0RBF flag
Data read
PTY
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 ...