
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
Содержание MCF5329
Страница 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 126: ...Enhanced Multiply Accumulate Unit EMAC 4 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 564: ...Liquid Crystal Display Controller LCDC 22 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 692: ...Programmable Interrupt Timers PIT0 PIT3 28 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 720: ...Queued Serial Peripheral Interface QSPI 30 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 790: ...Message Digest Hardware Accelerator MDHA 33 20 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Страница 902: ...Register Memory Map Quick Reference A 26 Freescale Semiconductor MCF5329 Reference Manual Rev 3...