NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 55 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
NUC972D
FxxY
NUC976D
KxxY
NUC977D
KxxY
Pin Name
Pin
Type
Description
179
-
-
PE.3
I/O
General purpose digital I/O pin Port E Pin 3.
RMII1_MDIO
I/O
RMII1 Management Data I/O
SD1_CLK
O
SD/SDIO mode #1 clock.
UART1_RXD
I
Data receiver input pin for UART1.
180
-
-
PE.2
I/O
General purpose digital I/O pin Port E Pin 2.
RMII1_MDC
O
RMII1 Management Data Clock
SD1_CMD
O
SD/SDIO mode #1 command/response.
UART1_TXD
O
Data transmitter output pin for UART1.
181
96
96
PE.1
I/O
General purpose digital I/O pin Port E Pin 1.
UART0_RXD
I
Data receiver input pin for UART0.
182
97
97
PE.0
I/O
General purpose digital I/O pin Port E Pin 0.
UART0_TXD
O
Data transmitter output pin for UART0.
183
98
98
IO_VDD
P
MCU I/O power pin.
184
99
99
XT1_IN
I
External 12MHz crystal input pin.
185
100
100
XT1_OUT
O
External 12MHz crystal output pin.
186
101
101
IO_VSS
P
MCU I/O ground pin.
187
102
102
PF.9
I/O
General purpose digital I/O pin Port F Pin 9.
RMII0_RXERR
I
RMII0 receive data error.
188
103
103
PF.8
I/O
General purpose digital I/O pin Port F Pin 8.
RMII0_CRSDV
I
RMII0 carrier sense / receive data valid.
189
104
104
PF.7
I/O
General purpose digital I/O pin Port F Pin 7.
RMII0_RXDATA1
I
RMII0 receive data bus bit 1.
190
105
105
PF.6
I/O
General purpose digital I/O pin Port F Pin 6.
RMII0_RXDATA0
I
RMII0 receive data bus bit 0.
191
106
106
PF.5
I/O
General purpose digital I/O pin Port F Pin 5.