MCF5213_10 Datasheet, PDF (22/54 Pages) Freescale Semiconductor, Inc – MCF5213 ColdFire Microcontroller

Family Configurations
1.9 UART Module Signals
Table 12 describes the UART module signals.
Table 12. UART Module Signals
Signal Name
Transmit Serial Data
Output
Receive Serial Data
Input
Clear-to-Send
Request-to-Send
Abbreviation
Function
I/O
UTXDn
URXDn
UCTSn
URTSn
Transmitter serial data outputs for the UART modules. The output is O
held high (mark condition) when the transmitter is disabled, idle, or in
the local loopback mode. Data is shifted out, LSB first, on this pin at
the falling edge of the serial clock source.
Receiver serial data inputs for the UART modules. Data is received on I
this pin LSB first. When the UART clock is stopped for power-down
mode, any transition on this pin restarts the clock.
Indication to the UART modules that they can begin data
I
transmission.
Automatic request-to-send outputs from the UART modules. This
O
signal can also be configured to be asserted and negated as a
function of the RxFIFO level.
1.10 DMA Timer Signals
Table 13 describes the signals of the four DMA timer modules.
Table 13. DMA Timer Signals
Signal Name
Abbreviation
Function
I/O
DMA Timer Input
DTIN
Event input to the DMA timer modules.
I
DMA Timer Output
DTOUT Programmable output from the DMA timer modules.
O
1.11 ADC Signals
Table 14 describes the signals of the Analog-to-Digital Converter.
Table 14. ADC Signals
Signal Name
Abbreviation
Function
I/O
Analog Inputs
AN[7:0] Inputs to the analog-to-digital converter.
I
Analog Reference
V_RH
Reference voltage high and low inputs.
I
V_RL
I
Analog Supply
V_DDA
Isolate the ADC circuitry from power supply noise.
—
V_SSA
—
ADC Sync Inputs
SYNCA / These signals can initiate an analog-to-digital conversion
I
SYNCB process.
MCF5213 ColdFire Microcontroller, Rev. 4
22
Freescale Semiconductor