SCF5249VM140 FREESCALE [Freescale Semiconductor, Inc], SCF5249VM140 Datasheet - Page 14

• Manufacturer Part Number: SCF5249VM140
• Description: Integrated ColdFire Microprocessor
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Signal Descriptions
14
ISA bus read strobes
ISA bus write strobes
ISA bus wait signal
Chip Selects[1:0]
Buffer enable 1
Buffer enable 2
Transfer acknowledge
Serial Clock Line
Serial Data Line
Serial Clock Line
Serial Data Line
Receive Data
Transmit Data
Request-To-Send
Clear-To-Send
Timer Input
Timer Output
Signal Name
SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3
CS2/IDE-DIOR/GPIO13
CS3/SRE/GPIO11
IDE-DIOW/GPIO14
SWE/GPIO12
IDE-IORDY/GPIO16
CS0
CS1/GPIO58
BUFENB1/GPIO57
BUFENB2/GPIO7
TA/GPIO20
SCL0/QSPI_CLK
SDA0/QSPI_DIN
SCL1_GPIO_3
SDA1_GPIO55
RXD1/GPI28/ADIN2
RXD0/GPI27
TXD1/GPO28
TXD0/GPO27
RTS1/GPO31
RTS2/GPO30
CTS1/ADIN3/GPI31
CTS0/GPI30
TIN0/GPI33
TIN1/GPIO23
TOUT0/GPO33
TOUT1/ADOUT/GPO35
Table 4. SCF5249 Signal Index (continued)
Mnemonic
There are 2 ISA bus read strobes and
2 ISA bus write strobes. They allow
connection of two independent ISA
bus peripherals, e.g. an IDE slave
device and a SmartMedia card.
ISA bus wait line - available for both
busses
Enables peripherals at programmed
addresses.
CS[1:0]. CS[0]provides boot ROM
selection
Two programmable buffer enables
allow seamless steering of external
buffers to split data and address bus
in sections.
Transfer Acknowledge signal
Clock signal for first I
operation
Signal is also QSPI clock
Serial data port first I
operation
Signal is also QSPI data in
Clock signal for second I
operation
Serial data port for second I
module operation
Signal is receive serial data input for
DUART
Signal is transmit serial data output
for DUART
DUART signals a ready to receive
data query
Signals to DUART that data can be
transmitted to peripheral
CTS2 is multiplexed with an A/D
input
Provides clock input to timer or
provides trigger to timer value
capture logic
Capable of output waveform or pulse
generation
Function
2
2
C module
C module
2
C module
2
C
Freescale Semiconductor
Output
In/Out
Input/
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
In/Out
Out
Out
Out
Out
In
In
In
asserted
negated
negated
Reset
State