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Philips Semiconductors
ARM-based Microcontroller
External Match Register (EMR: TIMER0 - T0EMR: 0xE000403C; TIMER1 - T1EMR: 0xE000803C)
The External Match Register provides both control and status of the external match pins M(0-3).
Table 162: External Match Register (EMR: TIMER0 - T0EMR: 0xE000403C; TIMER1 - T1EMR: 0xE000803C)
EMR
Function
0
External Match 0
1
External Match 1
2
External Match 2
3
External Match 3
External Match
5:4
Control 0
External Match
7:6
Control 1
External Match
9:8
Control 2
External Match
11:10
Control 3
Table 163: External Match Control
EMR[11:10], EMR[9:8],
EMR[7:6], or EMR[5:4]
0 0
0 1
1 0
1 1
Timer0 and Timer1
This bit reflects the state of output MAT0.0/MAT1.0, whether or not this output is
connected to its pin. When a match occurs for MR0, this output of the timer can either
toggle, go low, go high, or do nothing. Bits EMR[4:5] control the functionality of this
output.
This bit reflects the state of output MAT0.1/MAT1.1, whether or not this output is
connected to its pin. When a match occurs for MR1, this output of the timer can either
toggle, go low, go high, or do nothing. Bits EMR[6:7] control the functionality of this
output.
This bit reflects the state of output MAT0.2/MAT1.2, whether or not this output is
connected to its pin. When a match occurs for MR2, this output of the timer can either
toggle, go low, go high, or do nothing. Bits EMR[8:9] control the functionality of this
output.
This bit reflects the state of output MAT0.3/MAT1.3, whether or not this output is
connected to its pin. When a match occurs for MR3, this output of the timer can either
toggle, go low, go high, or do nothing. Bits EMR[10:11] control the functionality of this
output.
Determines the functionality of External Match 0. Table 163 shows the encoding of
these bits.
Determines the functionality of External Match 1. Table 163 shows the encoding of
these bits.
Determines the functionality of External Match 2. Table 163 shows the encoding of
these bits.
Determines the functionality of External Match 3. Table 163 shows the encoding of
these bits.
Clear corresponding External Match output to 0 (LOW if pinned out)
Set corresponding External Match output to 1(HIGH if pinned out)
Toggle corresponding External Match output
LPC2119/2129/2194/2292/2294
Description
Function
Do Nothing
220
Preliminary User Manual
Reset
Value
0
0
0
0
0
0
0
0
May 03, 2004
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