r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1186

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

23. Serial Peripheral Interface (HSPI)
Rev.1.00 Jan. 10, 2008 Page 1156 of 1658
REJ09B0261-0100
Bit
5
4 to 0
Bit Name
IDIV
CLKC4 to
CLKC0
Initial
Value
0
All 0
R/W
R/W
R/W
Initial Clock Division Ratio
Description
0: The peripheral clock (Pck) is divided by a factor of 4
1: The peripheral clock (Pck) is divided by a factor of 32
Clock Division Count
These bits determine the frequency dividing ratio that is
used to obtain the serial clock from the intermediate
clock.
00000: 1 intermediate frequency cycle.
00001: 2 Intermediate frequency cycles.
00010: 3 intermediate frequency cycles.
11111: 32 intermediate frequency cycles.
initially to create an intermediate frequency, which is
further divided to create the serial clock for master
mode.
initially to create an intermediate frequency, which is
further divided to create the serial clock for master
mode.
:
Serial clock frequency = Intermediate
frequency / 2.
Serial clock frequency = Intermediate
frequency / 4.
Serial clock frequency = Intermediate
frequency / 6.
Serial clock frequency = Intermediate
frequency / 64.
: