mcf5253 Freescale Semiconductor, Inc, mcf5253 Datasheet - Page 7

• Manufacturer Part Number: mcf5253
• Description: Mcf5253 Coldfire? Microprocessor Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
ISA bus read strobe
ISA bus write strobe
ISA bus wait signal
Chip Selects[2:0]
Buffer enable 1
Buffer enable 2
Transfer acknowledge
Wake Up
Serial Clock Line
Serial Data Line
Receive Data
Transmit Data
Request-To-Send
Clear-To-Send
Timer Output
IEC958 inputs
IEC958 outputs
Serial data in
Signal Name
IDE_DIOR/GPIO31
(CS2)
IDE_DIOW/GPIO32
(CS2)
IDE_IORDY/GPIO33
CS0/CS4
CS1/QSPICS3/GPIO28
BUFENB1/GPIO29
BUFENB2/GPIO30
TA/GPIO12
WAKEUP/GPIO21
SCL0/SDATA1_BS1/GPIO41
SCL1/TXD1/GPIO10
SDA0/SDATA3/GPIO42
SDA1/RXD1/GPIO44
SDA1/RXD1/GPIO44
RXD0/GPIO46
EF/RXD2/GPIO6
SCL1/TXD1/GPIO10
TXD0/GPIO45
XTRIM/TXD2/GPIO0
DDATA3/RTS0/GPIO4
DDATA1/RTS1/SDATA2_BS2/GPIO2
DDATA2/CTS0/GPIO3
DDATA0/CTS1/SDATA0_SDIO1/GPIO1
SDATAO1/TOUT0/GPIO18
EBUIN1/GPIO36
EBUIN2/SCLKOUT/GPIO13
EBUIN3/CMD_SDIO2/GPIO14
QSPICS0/EBUIN4/GPIO15
EBUOUT1/GPIO37
QSPICS1/EBUOUT2/GPIO16
SDATAI1/GPIO17
SDATAI3/GPIO8
MCF5253 ColdFire Processor Data Sheet: Technical Data, Rev. 4
Table 3. MCF5253 Signal Index (continued)
Mnemonic
ISA bus wait line available for both
Two programmable buffer
enables—allow seamless steering of
external buffers to split data and
address bus in sections.
Transfer Acknowledge signal.
Wake-up signal input
Capability of output waveform or
1 ISA bus read strobe and 1 ISA bus
write strobe—allow connection of an
independent ISA bus peripheral,
such as an IDE slave device.
busses
Chip selects bits 2 through 0—
enable peripherals at programmed
addresses. CS0 provides boot ROM
selection.
Clock signal for Dual I
operation
Serial data port for second I
module operation
Receive serial data input for UART
Transmit serial data output for UART
Signals sent from UART0/1 that it is
ready to receive data
Signals sent to UART0/1 that data
can be transmitted to peripheral
pulse generation
Audio interfaces to IEC958 inputs
Audio interfaces to IEC958 outputs
Audio interfaces to serial data inputs
Function
2
C module
2
C
Output
Input/
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
Signal Description
Out
Out
Out
Out
Out
In
In
In
In
In
negated
Reset
State
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
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