Nuvoton NuMicro MS51PC0AE - Page 302

MS51
Nov. 28, 2019 Page 302 of 491 Rev 1.00
MS51 32K SERIES TECHNICAL REFERENCE MANUAL
T2MOD – Timer 2 Mode
Register
SFR Address
Reset Value
T2MOD
C9H, Page 0
0000_0000 b
7
6
5
4
3
2
1
0
LDEN
T2DIV[2:0]
CAPCR
CMPCR
LDTS[1:0]
R/W
R/W
R/W
R/W
R/W
Bit
Name
Description
7
LDEN
Enable auto-reload
0 = Reloading RCMP2H and RCMP2L to TH2 and TL2 Disabled.
1 = Reloading RCMP2H and RCMP2L to TH2 and TL2 Enabled.
6:4
T2DIV[2:0]
Timer 2 clock divider
000 = Timer 2 clock divider is 1/1.
001 = Timer 2 clock divider is 1/4.
010 = Timer 2 clock divider is 1/16.
011 = Timer 2 clock divider is 1/32.
100 = Timer 2 clock divider is 1/64.
101 = Timer 2 clock divider is 1/128.
110 = Timer 2 clock divider is 1/256.
111 = Timer 2 clock divider is 1/512.
3
CAPCR
Capture auto-clear
This bit is valid only under Timer 2 auto-reload mode. It enables hardware auto-clearing TH2
and TL2 counter registers after they have been transferred in to RCMP2H and RCMP2L while a
capture event occurs.
0 = Timer 2 continues counting when a capture event occurs.
1 = Timer 2 value is auto-cleared as 0000H when a capture event occurs.
2
CMPCR
Compare match auto-clear
This bit is valid only under Timer 2 compare mode. It enables hardware auto-clearing TH2 and
TL2 counter registers after a compare match occurs.
0 = Timer 2 continues counting when a compare match occurs.
1 = Timer 2 value is auto-cleared as 0000H when a compare match occurs.
1:0
LDTS[1:0]
Auto-reload trigger select
These bits select the reload trigger event.
00 = Reload when Timer 2 overflows.
01 = Reload when input capture 0 event occurs.
10 = Reload when input capture 1 event occurs.
11 = Reload when input capture 2 event occurs.