User manual

Timer_B Registers
13-21Timer_B
Timer_B Control Register TBCTL
15 14 13 12 11 10 9 8
Unused
TBCLGRPx CNTLx Unused TBSSELx
rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) rw−(0)
76543210
IDx MCx Unused TBCLR TBIE TBIFG
rw−(0) rw−(0) rw−(0) rw−(0) rw−(0) w−(0) rw−(0) rw−(0)
Unused
Bit 15 Unused
TBCLGRP
Bit
14-13
TBCLx group
00 Each TBCLx latch loads independently
01 TBCL1+TBCL2 (TBCCR1 CLLDx bits control the update)
TBCL3+TBCL4 (TBCCR3 CLLDx bits control the update)
TBCL5+TBCL6 (TBCCR5 CLLDx bits control the update)
TBCL0 independent
10 TBCL1+TBCL2+TBCL3 (TBCCR1 CLLDx bits control the update)
TBCL4+TBCL5+TBCL6 (TBCCR4 CLLDx bits control the update)
TBCL0 independent
11 TBCL0+TBCL1+TBCL2+TBCL3+TBCL4+TBCL5+TBCL6
(TBCCR1 CLLDx bits control the update)
CNTLx
Bits
12-11
Counter Length
00 16-bit, TBR
(max)
= 0FFFFh
01 12-bit, TBR
(max)
= 0FFFh
10 10-bit, TBR
(max)
= 03FFh
11 8-bit, TBR
(max)
= 0FFh
Unused
Bit 10 Unused
TBSSELx
Bits
9-8
Timer_B clock source select.
00 TBCLK
01 ACLK
10 SMCLK
11 Inverted TBCLK
IDx
Bits
7-6
Input divider. These bits select the divider for the input clock.
00 /1
01 /2
10 /4
11 /8
MCx
Bits
5-4
Mode control. Setting MCx = 00h when Timer_B is not in use conserves
power.
00 Stop mode: the timer is halted
01 Up mode: the timer counts up to TBCL0
10 Continuous mode: the timer counts up to the value set by TBCNTLx
11 Up/down mode: the timer counts up to TBCL0 and down to 0000h