MC68HC912BD32 Datasheet, PDF (111/292 Pages) Freescale Semiconductor, Inc – Advance Information

Freescale Semiconductor, Inc.
Clocks
Clock Divider Chains
Clock Divider Chains
Figure 12, Figure 13, and Figure 14 summarize the clock divider chains
for the various peripherals on the MC68HC912BD32.
÷ 2²
÷ 2¹¹
REGISTER: RTICTL
BIT: RTBYP
SC0BD
MODULUS DIVIDER:
÷ 1, 2, 3, 4, 5, 6, ..., 8190, 8191
SCI0
RECEIVE
BAUD RATE ((16x)
÷ 2⁴
SCI0
TRANSMIT
BAUD RATE (1x)
REGISTER: RTICTL
0:0:0
BITS: RTR2, RTR1, RTR0
0:0:1
÷2
0:1:0
÷2
0:1:1
÷2
1:0:0
÷2
1:0:1
÷2
1:1:0
÷2
1:1:1
REGISTER: COPCTL 0:0:0
BITS: CR2, CR1, CR0
0:0:1
÷4
0:1:0
÷4
0:1:1
÷4
1:0:0
÷4
1:0:1
÷2
1:1:0
÷2
1:1:1
TO RTI
TO COP
Figure 12 Clock Chain for SCI, RTI, COP
11-clock
Clocks
For More Information On This Product,
Go to: www.freescale.com
MC68HC912BD32 Rev 1.0