
Chip Configuration Module (CCM)
Freescale Semiconductor
9-9
9.4
Functional Description
Six functions are defined within the chip configuration module:
1. Reset configuration
2. PLL mode
3. Oscillator mode
4. Boot device selection
5. Output pad strength configuration
6. Chip select configuration
These functions are described below.
9.4.1
Reset Configuration
During reset, the pins for the reset override functions are immediately configured to known states.
shows the states of the external pins while in reset.
If the RCON pin is not asserted during reset, the chip configuration and the reset configuration pin
functions after reset are determined by the RCON register or fixed defaults, regardless of the states of the
external data pins. The internal configuration signals are driven to levels specified by the RCON register’s
reset state for default module configuration.
1
UOMIE
USB OTG miscellaneous interrupt enable. Enables an interrupt to be generated from any of the following bits of
the UOCSR: DPPD, DMPD, DRV_VBUS, CRG_VBUS, DCR_VBUS, DPPU, and WKUP
0 Interrupt sources are disabled.
1 Interrupt sources are enabled.
0
XPDE
On-chip transceiver pull-down enable
0 50 k
Ω
pull-downs disabled on OTG D+ and D- pins of on-chip transceiver.
1 Optional on-chip 50 k
Ω
pull-downs enabled on OTG D+ and D- transceiver pins of on-chip transceiver.
Table 9-9. Reset Configuration Pin States During Reset
Pin
Pin
Function
1
1
If the external RCON pin is not asserted during reset, pin functions are determined by the
default operation mode defined in the RCON register. If the external RCON pin is asserted,
pin functions are determined by the override values driven on the external data bus pins.
I/O
Output
State
Input
State
D[15:0]
Primary function
Input
—
Must be driven by
external logic
RCON
RCON function for all modes
2
2
During reset, the external RCON pin assumes its RCON pin function, but this pin changes
to the function defined by the chip operation mode immediately after reset. See
Input
—
Internal weak pull-up
device
Table 9-8. UOCSR Field Description (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...