ata6616 ATMEL Corporation, ata6616 Datasheet - Page 132

• Manufacturer Part Number: ata6616
• Description: Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
• Manufacturer: ATMEL Corporation

4.12.2
4.12.2.1
132
ATA6616/ATA6617 [Preliminary]
Timer/Counter1 Prescalers Register Description
General Timer/Counter Control Register – GTCCR
• Bit 7 – TSM: Timer/Counter Synchronization Mode
Writing the TSM bit to one activates the Timer/Counter Synchronization mode. In this mode, the
value that is written to the PSR0 and PSR1 bits is kept, hence keeping the corresponding pres-
caler reset signals asserted. This ensures that the corresponding Timer/Counters are halted and
can be configured to the same value without the risk of one of them advancing during configura-
tion. When the TSM bit is written to zero, the PSR0 and PSR1 bits are cleared by hardware, and
the Timer/Counters start counting simultaneously.
• Bit 0 – PSR1: Prescaler Reset Timer/Counter1
When this bit is one, Timer/Counter1 prescaler will be reset. This bit is normally cleared immedi-
ately by hardware, except if the TSM bit is set.
Bit
Read/Write
Initial Value
TSM
R
7
0
R
6
–
0
R
5
–
0
R
4
–
0
DRAFT
R
3
–
0
R
2
–
0
PSR0
R/W
1
0
PSR1
R/W
0
0
9132A–AUTO–10/08
GTCCR