tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 318

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

16-bit Timer/Event Counters (TMRBs)
11.5.3
Match with TB1RG0
(INTTB0 interrupt)
Match with TB1RG1
TB1OUT pin
Square waves with any frequency and any duty (programmable square waves) can be output. The
output pulse can be either low-active or high-active.
Programmable square waves can be output from the TB1OUT pin by triggering the timer flip-flop
(TB1FF) to reverse when the set value of the up-counter (UC1) matches the set values of the timer
registers (TB1RG0 and TB1RG1). Note that the set values of TB1RG0 and TB1RG1 must satisfy the
following requirement:
(Set value of TB1RG0) < (Set value of TB1RG1)
(INTTB1 interrupt)
In this mode, by enabling the double buffering of TB1RG0, the value of register buffer 0 is shifted into
TB1RG0 when the set value of the up-counter matches the set value of TB1RG1. This facilitates
handling of small duties.
Match with TB1RG0
Match with TB1RG1
TB1RG0
(compare value)
Register buffer
16-bit PPG (Programmable Square Wave) Output Mode
Fig. 11.2 Example of Output of Programmable Square Wave (PPG)
Up-counter = Q
Fig. 11.3 Register Buffer Operation
TMP19A44(rev1.3) 11-20
1
Q
1
Q
2
Trigger to shift to TB1RG1
Up-counter = Q
Write TB1RG0
Q
2
2
TMP19A44
Q
3
2010-04-01