Signal Descriptions
MCF5272 ColdFire Integrated Microprocessor User’s Manual, Rev. 3
Freescale Semiconductor
19-13
D8
A16
—
A16
O
D9
A15
—
A15
O
D10
A0
—
A0
O
D11
D14
PC14
—
D14/PC14
D14/port C bit 14
I/O
D12
A10
SDA9
SDA8
—
A10/SDA9/SDA8
A10/SDRAM-16bit
A9/SDRAM-32bit A8
O
D13
SDCLKE
—
SDCLKE
SDRAM clock enable
O
D14
A10_PRECHG
—
A10_PRECHG
SDRAM A10_Precharge
O
E1
PA6
USB_RxD
—
PA6/USB_RxD
Port A bit 6/USB receive
data output
I/O
E2
PA5
USB_TxEN
—
PA5/USB_TxEN
Port A bit 5/USB
transmitter enable
I/O
E3
PA4
USB_
Susp
—
PA4/USB_Susp
Port A bit 4/
Suspend USB driver
I/O
E4
PA3
USB_TN
—
PA3/USB_TN
Port A bit 3/
USB Tx negative
I/O
E5
PA2
USB_RN
—
PA2/USB_RN
Port A bit 2/
USB Rx negative
I/O
E6
TEST
–
—
TEST
Device test mode enable
I
E7
GND
Ground
—
GND
E8
GND
Ground
—
GND
E9
A22
–
—
A22
O
E10
D15
PC15
—
D15/PC15
D15/port C bit 15
I/O
E11
D13
PC13
—
D13/PC13
D13/port C bit 13
I/O
E12
BS2
—
BS2
Byte strobe 2
O
E13
BS3
—
BS3
Byte strobe 3
O
E14
SDCLK
—
SDCLK
SDRAM (bus) clock,
Same frequency as CPU
clock
O
F1
USB_D+
—
USB_D+
USB line driver high,
analog
O
F2
USB_D-
—
USB_D-
USB line driver low,
analog
O
F3
PB5
TA
—
PB5/TA
Port B bit 5/Transfer
acknowledge
I/O
F4
RSTO
—
RSTO
Reset output strobe
O
F5
VDD
+3.3V
—
VDD
Table 19-2. Signal Name and Description by Pin Number (Sheet 3 of 8)
Map
BGA
Pin
Pin Functions
Name
Description
I/O
0 (Reset)
1
2
3