HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 446

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

15.3.14 SPI Control Register (SPICR)
SPICR is a 16-bit readable/writable register that specifies the operating mode of the SPI.
Rev. 1.00, 02/04, page 408 of 804
Bit
15
14
13
12
11
10
9
8
7, 6
Bit Name
SPIM
—
CPHA
CPOL
—
SS2E*
SS1E*
SS0E*
—
Initial
Value
0
0
0
0
0
0
0
0
All 0
R/W
R/W
R
R/W
R/W
R
R/W
R/W
R/W
R
Description
SPI Mode
Selects the SIOF operating mode.
0: Operates as the SIOF.
1: The SIOF operates in master mode of the SPI.
Reserved
This bit is always read as 0. The write value should
always be 0. If 1 is written to this bit, the operation is not
guaranteed.
SPI Clock Phase
Selects the SPI clock phase.
0: Samples data at the first edge of the SCK.
1: Samples data at the second edge of the SCK.
SPI Clock Polarity
Selects the SPI clock polarity.
0: The SCK is high-active, and goes low in the idle state.
1: The SCK is low-active, and goes high in the idle state.
Reserved
This bit is always read as 0. The write value should
always be 0. If 1 is written to this bit, the operation is not
guaranteed.
Slave Device 2 (SS2) Enable
0: Not select slave device 2.
1: Selects slave device 2.
Slave Device 1 (SS1) Enable
0: Not select slave device 1.
1: Selects slave device 1.
Slave Device 0 (SS0) Enable
0: Not select slave device 0.
1: Selects slave device 0.
Reserved
These bits are always read as 0. The write value should
always be 0. If 1 is written to these bits, the operation is
not guaranteed.