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CHAPTER 13 16-Bit I/O TIMER
13.3.6 Input Capture Edge Register (ICE)
The input capture edge register has a function to indicate the selected edge direction
and to select whether the input signal is inputted from either external pin or LIN-UART.
By cooperating with the LIN-UART, the baud rate measurement at the LIN slave
operation can be performed.
The correspondence between ICE01 to ICE23 / channel name and input pin (UART)
name is shown as follows.
ICE01: input capture ch0, ch1 IN0(/UART0) IN1(/UART1)
ICE23: input capture ch2, ch3 IN2 IN3
■ Input Capture Edge Register (ICE)
Figure 13.3-6 Input Capture Edge Register (ICE)
X
R
R/W
RRR/WR/W
IEI0IEI1ICUS0ICUS1
bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8
ICE01 : 000051
H
ICE23 : 000053
H
RR
IEI2IEI3
bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8
XXX0X0XXB
XXXXXXXXB
n = 0, 2 m = n+1
bit10
ICUS0 Input signal selection bit 0
0 Input signal of external pin IN0
1 Signal from UART0
Reset value
bit12
ICUS1 Input signal selection bit 1
0 Input signal of external pin IN1
1 Signal from UART1
bit8
IEIn
Detection edge
indication bit n
0 Detect falling edge
1 Detect rising edge
bit9
IEIm
Detection edge
indication bit m
0 Detect falling edge
1 Detect rising edge
Reset value
: Read/Write
: Read only
: Indeterminate
: Undefined
: Reset value