Samsung S3C80M4/F80M4 User Manual page 195

S3C80M4/F80M4
CLOCK OUTPUT CONTROL REGISTER (CLOCON)
The clock output control register, CLOCON, is located in the bank 0 of set1, address E3H. It is read/write
addressable and has the following functions;
— Clock Output Frequency Selection
After a reset, fxx/64 is select for Clock Output Frequency because the reset value of CLOCON.1-.0 is "0".
MSB
Clock Output Control Register (CLOCON)
E3H, Set 1, bank 0, R/W
.7 .6 .5 .4
Not used for the S3C80M4
Figure 7-6. Clock Output Control Register (CLOCON)
CLOCON.1-.0
fxx/64
fxx/16
MUX
fxx/8
fxx/4
Figure 7-7. Clock Output Block Diagram
.3 .2 .1 .0
Clock Output Frequency Selection Bits:
00 = fxx/64
01 = fxx/16
10 = fxx/8
11 = fxx/4
P1CONH.5-.4
CLOCK CIRCUIT
LSB
CLKOUT
7-5