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ADM5120 Interface Description
UCTS
L17
125
I
UART0 clear to send (modem status
input), active low
Can also be used as GPIO
UDI0
R20
127 I
UART0 receive serial data input,
Internal pull down.
UDO0
N18
129
O
UART0 transmit serial data output
UDI1
P19
130 I
UART1 receive serial data input,
Internal pull down.
UDO1
L16
131
O
UART1 transmit serial data output
2.2.8 JTAG
Pin Name
BGA Ball
PQFP Pin#
Type Descriptions
TCK
H18 139
I
JTAG test clock, Internal pull down.
TMS
G19 137
I
JTAG test mode select, Internal pull
down.
TDO
G20 136
O
JTAG test data out
TDI
H19 135
I
JTAG test data in, Internal pull down.
TRST_N
H20 134
I
JTAG asynchronous reset (active low)
2.2.9 General Purpose I/O (GPIO)
Pin Name
BGA Ball
PQFP Pin#
Type Descriptions
GPIO[7:0]/GPIO[3:
0]
E17, D18, C19,
C20, E18, G17,
D19, F18
151, 150, 149, 148
BI
BI General purpose I/O pin. GPIO[0] is
internal pull up. GPIO[2:1] are internal
pull down.
Note: In the BGA version GPIO5 can
be programmed to SDRAM memory
address A20 for 2Mx16bit Flash thus
supporting large Flash memory.
LEDN[2:0]
Refer to LED
section
Refer to LED
section
BI
General purpose I/O pin GPIO[8:3] are
internal pull down.
2.2.10 PCI
ADMtek Inc.
2-9
Pin Name
BGA Ball
PQFP Pin#
Type Descriptions
PCI_AD[31:0]
W4, Y7, V8, T9,
W8, Y8, V9, U9,
Y13, T12, W13,
Y14, V13, T13,
U15, Y18, Y19,
Y20, W19, V20,
U18, R18, V19,
N17, P20, N19,
N20, J16, M18,
M19, M20, L18
NA
BI
Address and data bus are multiplexed
on the same PCI pins. A bus
transaction consists of an address
phase followed by one or more data
phase. The PCI host bridge support
both read and write bursts.
PCI_CBE[3:0]
U6, V4, U5, U4
NA
BI
Bus Command and Byte Enables
PCI_DEVSEL M1
NA
BI
Device
Select. When actively indicates
the driving device has decoded its
address as the target of the current
access.
PCI_FRAME
M5
NA
BI
Cycle Frame. PCI_FRAME is asserted
to indicate a bus transaction is
beginning and data transfers continue