Modular Input/Output Subsystem (MIOS14)
MPC561/MPC563 Reference Manual, Rev. 1.2
17-20
Freescale Semiconductor
Figure 17-10. MMCSM Block Diagram
Figure 17-11. MMCSM Modulus Up-Counter
17.8.1
MMCSM Features
•
Programmable 16-bit modulus up-counter with a built-in programmable 8-bit prescaler clocked by
MCPSM
•
Maximum increment frequency of the counter:
— clocked by the internal MCPSM output: f
SYS
/ 2
— clocked by the external signal: f
SYS
/ 4
•
Flag setting and possible interrupt generation on overflow of the up-counter register
16-bit Up-Counter Reg.
Edge
16-bit Counter Bus
Clock input
Overflow
MIOB
Detect
Load
Control
16-bit Modulus
signal (MMCnC)
Edge
Modulus Load
Detect
signal (MMCnL)
Counter Clock
Clock
Select
Load
Clock
MMCSMML
MMCSMCNT
Flag
8-bit Clock
Prescaler
8-bit Prescale
Mod.Register
Clock
Enable
Request Bus
FREN
CLS1
CLS0
CP7 - CP0
PINC
PINL
EDGN
EDGP
Latch Reg.
PINC
0xFFFF
Modulus Value
Two’s Complement
Counter Reload
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...