R01AN1504EJ0100 Datasheet, PDF (24/50 Pages) Renesas Technology Corp – Using the DTC to Perform Continuous Clock

RL78/G14
Using the DTC to Perform Continuous Clock
Synchronous Serial Communication
Setting the CSI00 communication format
• Serial communication operation setting register 00 (SCR00)
Operating mode: Enable transmission/reception
Clock phase: Type 1
Data transfer sequence: MSB first
Data length: 8-bit data length
Symbol 15 14 13 12 11 10 9 8 7 6
SCR00 TXE RXE DAP CKP 0 EOC PTC PTC DIR 0
00 00 00 00
00 001 000 00
Value 1 1 0 0 ‒ × × × 0 ‒
5 43
SLC SLC 0
001 000
× ×‒
21 0
1 DLS DLS
001 000
‒1 1
• Bits 15 and 14
TXE00 RXE00
bit
bit
0
0
0
1
1
0
1
1
Selection of operating mode of channel n
Disable communication
Reception only
Transmission only
Transmission/reception
• Bits 13 and 12
DAP00 CKP00
bit
bit
0
0
0
1
1
0
1
1
Type 1
Type 2
Type 3
Type 4
Selection of data and clock phase in CSI mode
• Bit 7
DIR00 bit
Selection of data transfer sequence in CSI and UART modes
0
Inputs/outputs data with MSB first
1
Inputs/outputs data with LSB first
• Bits 1 and 0
DLS001 DLS000
bit
bit
Setting of data length in CSI and UART modes
0
0
9-bit data length (stored in bits 0 to 8 of the SDR00 register) (settable in
UART mode only)
1
0
7-bit data length (stored in bits 0 to 6 of the SDR00 register)
1
1
8-bit data length (stored in bits 0 to 7 of the SDR00 register)
Other than above Setting prohibited
For details on register setting, refer to the RL78/G14 User’s Manual: Hardware.
Legend symbol:
×: Unused bit; blank cell: unchanged bit; ‒: reserved bit or unallocated bit
R01AN1504EJ0100 Rev. 1.00
Feb. 14, 2014
Page 24 of 47