XC835/836
General Device Information
Table 3
Pin Definitions and Functions for XC835/836 (cont’d)
Symbol Pin
Type Reset Function
Number
State
TSSOP28/
DS024
P3.1 25/23
PU RXD_4
UART Receive Input
RTCCLK RTC External Clock Input
MTSR_4
SSC Master Transmit Output/
Slave Receive Input
MRST_4 SSC Master Receive Input
EXINT0_5 External Interrupt Input 0
COLA_0 LED Column A
XTAL3
32.768 kHz External oscillator
Input
EXF2_1
Timer 2 Overflow Flag
P3.2 27/1
PU SPD_0
SPD Input/Output
RXD_3
UART Receive Input/
UART BSL Receive Input
SDA_2
IIC Data Line
MTSR_5 SSC Slave Receive Input
MRST_5
SSC Master Receive Input/
Slave Transmit Output
EXINT0_6 External Interrupt Input 0
T2EX_7
Timer 2 External Trigger Input
TXD_3
UART Transmit Output/
1-wire UART BSL Transmit Output
VDDP
VDDC
VSSP/
VSSC
12/10
18/16
17/15
––
––
––
I/O Port Supply (2.5 V - 5.5 V)
Core Supply Monitor (2.5 V)
I/O Port Ground/
Core Supply Ground
Data Sheet
17
V1.2, 2011-03