
Power Management
8-4
Freescale Semiconductor
8.2.3
Peripheral Power Management Clear Registers (PPMCR0 &
PPMCR1)
The PPMCR registers provide a simple mechanism to clear a given bit in the PPMHR & PPMLR registers,
enabling the clock for a given peripheral module without the need to perform a read-modify write on the
PPMR. The data value on a register write causes the corresponding bit in the PPM{H,L}R to be clear. A
value of 64 to 127 (setting the CAMCD bit) provides a global clear function forcing the entire contents of
the PPMR to be clear, enabling all peripheral module clocks. Reads of these registers return all zeroes.
8.2.4
Peripheral Power Management Registers (PPMHR0, PPMHR1, &
PPMLR0)
The PPMR registers provide a bit map for controlling the generation of the peripheral clocks for each
decoded address space. Recall each peripheral module is mapped into 16 kByte slots within the memory
map. The PPMR registers provide a unique control bit for each of these address spaces that defines whether
the module clock for the given space is enabled or disabled.
6
SAMCD
Set all module clock disables.
0 Set only those bits specified in the SMCD field
1 Set all bits in PPMRH and PPMRL, disabling all peripheral clocks
5–0
SMCD
Set module clock disable. Set the corresponding bit in PPM{H,L}R, disabling the peripheral clock.
Address: 0xFC04_002D (PPMCR0)
0xFC04_002F (PPMCR1)
Access: Supervisor Write-only
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
0
W
CAMCD
CMCD
Reset:
0
0
0
0
0
0
0
0
Figure 8-3. Peripheral Power Management Clear Registers (PPMCRn)
Table 8-4. PPMCRn Field Descriptions
Field
Description
7
Reserved, should be cleared.
6
CAMCD
Clear all module clock disables.
0 Clear only those bits specified in the CMCD field
1 Clear all bits in PPMRH and PPMRL, enabling all peripheral clocks
5–0
CMCD
Clear module clock disable. Clear the corresponding bit in PPMR{H,L}, enabling the peripheral clock.
Table 8-3. PPMSRn Field Descriptions (continued)
Field
Description
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...