M32C8A Datasheet, PDF (101/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
9. Clock Generation Circuits
9.4 Clock Output Function
The CLKOUT pin outputs fC, f8, or f32.
The BCLK clock, which has the same frequency as the CPU clock, can be output from the BCLK pin in
microprocessor mode.
Table 9.4 lists CLKOUT pin function in microprocessor mode.
Table 9.4 CLKOUT Pin Function in Microprocessor Mode
CM0 Register⁽¹⁾
PM1 Register⁽²⁾
Bits CM01 and CM00 Bits PM15 and PM14
00b
10b
00b
11b
01b
01b
−
10b
−
11b
−
PM0 Register⁽²⁾
PM07 bit
0
1
−
−
−
−
CLKOUT/BCLK/ALE Pin Function
Outputs BCLK
Outputs “L”
(does not function as P5_3)
Outputs ALE
Outputs fC
Outputs f8
Outputs f32
−: Can be set to either 0 or 1
NOTES:
1. Change the CM0 register after setting the PRC0 bit in the PRCR register to 1 (write enable).
2. Change registers PM0 and PM1 after setting the PRC1 bit in the PRCR register to 1 (write enable).
Rev.1.00 Jul 15, 2007 Page 84 of 352
REJ09B0385-0100