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Microcontroller Port Usage
Pin
μC Port
Signal
47
P0_1
I2C_1_SCL
46
P0_0
I2C_1_SDA
73
P2_2
LED8
70
P2_3
LED9
45
P1_29
LED10
44
P1_28
LED11
92
P1_8
RMII_CRS
87
P1_16
RMII_MDC
86
P1_17
RMII_MDIO
88
P1_15
RMII_REF_CLK
91
P1_9
RMII_RXD0
90
P1_10
RMII_RXD1
89
P1_14
RMII_RXER
95
P1_0
RMII_TXD0
94
P1_1
RMII_TXD1
93
P1_4
RMII_TXEN
57
P0_21
UC_DIP_0
58
P0_20
UC_DIP_1
33
P1_19
UC_DIP_2
34
P1_20
UC_DIP_3
53
P2_10
ISP_SELECT
99
P0_3
UC_ISP_UART_RX
98
P0_2
UC_ISP_UART_TX
* O_0: Output ('0' at/after HW reset); O_1: Output ('1' at/after HW reset); I: Input
UM_INAP375R Revision 1.2_A1
User Manual
Direction
OC
OC
O_0
O_0
O_0
O_0
I
I
I
O_0
I
I
I
O_0
O_0
O_0
I
I
I
I
I
I
O_0
Table 5-1: Microcontroller Port Usage
Inova Semiconductors Confidential
Description
I2C Bus 1
μC Alive LED (Blink)
tbd
tbd
μC Suspend Mode Active
Reduced MI interface of μC
Apix Data Interface Suspend Mode
Enable
tbd
tbd
tbd
Enable ISP mode
ISP Interface
Page 22 of 37
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