TMP86C993XB Toshiba, TMP86C993XB Datasheet - Page 125

• Manufacturer Part Number: TMP86C993XB
• Description: EMULATION CHIP FOR TMP86F SSOP
• Manufacturer: Toshiba

Specifications of TMP86C993XB

• Accessory Type: Adapter
• For Use With/related Products: TMP86F SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Example :Generating a pulse with 1-ms high-level width and a period of 32.768 ms (fc = 16.0 MHz)
Table 11-7 16-Bit PWM Output Mode
DV7CK = 0
NORMAL1/2, IDLE1/2 mode
fc/2
fc/2
fc/2
fc/2
fc/2
and 3 can be changed while the timer is running. The values set to PWREG4 and 3 during a run of the timer are
shifted by the INTTCj interrupt request and loaded into PWREG4 and 3. While the timer is stopped, the values
are shifted immediately after the programming of PWREG4 and 3. Set the lower byte (PWREG3) and upper byte
(PWREG4) in this order to program PWREG4 and 3. (Programming only the lower or upper byte of the register
should not be attempted.)
read, but not the values set in PWREG4 and 3. Therefore, after writing to the PWREG4 and 3, reading data of
PWREG4 and 3 is previous value until INTTC4 is generated.
fs
fc
11
7
5
3
Note 1: In the PWM mode, program the timer register PWREG4 and 3 immediately after the INTTC4 interrupt request
Note 2: When the timer is stopped during PWM output, the PWM4 pin holds the output status when the timer is
Note 3: To enter the STOP mode, stop the timer and then enter the STOP mode. If the STOP mode is entered without
Since PWREG4 and 3 in the PWM mode are serially connected to the shift register, the values set to PWREG4
If executing the read instruction to PWREG4 and 3 during PWM output, the values set in the shift register is
For the pin used for PWM output, the output latch of the I/O port must be set to 1.
is generated (normally in the INTTC4 interrupt service routine.) If the programming of PWREGj and the
interrupt request occur at the same time, an unstable value is shifted, that may result in generation of pulse
different from the programmed value until the next INTTC4 interrupt request is generated.
stopped. To change the output status, program TC4CR<TFF4> after the timer is stopped. Do not program
TC4CR<TFF4> upon stopping of the timer.
Example: Fixing the PWM4 pin to the high level when the TimerCounter is stopped
CLR (TC4CR).3 ; Stops the timer.
CLR (TC4CR).7 ; Sets the PWM4 pin to the high level.
stopping of the timer when fc, fc/2 or fs is selected as the source clock, a pulse is output from the PWM4 pin
during the warm-up period time after exiting the STOP mode.
Source Clock
DV7CK = 1
fs/2
fc/2
fc/2
fc/2
fc/2
3
fs
fc
LDW
LD
LD
LD
[Hz]
7
5
3
Setting ports
(PWREG3), 07D0H
(TC3CR), 33H
(TC4CR), 056H
(TC4CR), 05EH
SLOW1/2,
SLEEP1/2
fs/2
mode
3
fs
-
-
-
-
-
[Hz]
Page 111
fc = 16 MHz
30.5 μs
62.5 ns
128 μs
500 ns
125 ns
8 μs
2 μs
; Sets the pulse width.
; Sets the operating clock to fc/2
; (lower byte).
; Sets TFF4 to the initial value 0, and 16-bit PWM signal
; generation mode (upper byte).
; Starts the timer.
Resolution
fs = 32.768 kHz
244.14 μs
30.5 μs
-
-
-
-
-
3
, and 16-bit PWM output mode
fc = 16 MHz
524.3 ms
131.1 ms
32.8 ms
8.2 ms
4.1 ms
8.39 s
2 s
Repeated Cycle
TMP86FH92DMG
fs = 32.768 kHz
16 s
2 s
-
-
-
-
-