TMP86C993XB Toshiba, TMP86C993XB Datasheet - Page 102

• 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

10.3
Function
10.3.3
TC1 pin Input
Up-counter
TC1DRA
INTTC1
interrput request
rising or falling edge of the input pulse is selected as the count up edge in TC1CR<TC1S>.
and the up-counter is cleared. After being cleared, the up-counter restarts counting at each edge of the input pulse
to the TC1 pin. Since a match between the up-counter and the value set to TC1DRA is detected at the edge
opposite to the selected edge, an INTTC1 interrupt request is generated after a match of the value at the edge
opposite to the selected edge.
Use the auto-capture function in the operative condition of TC1. A captured value may not be fixed if it's read
after the execution of the timer stop or auto-capture disable. Read the capture value in a capture enabled condition.
Since the up-counter value is captured into TC1DRB by the source clock of up-counter after setting
TC1CR<ACAP1> to "1". Therefore, to read the captured value, wait at least one cycle of the internal source
clock before reading TC1DRB for the first time.
In the event counter mode, the up-counter counts up at the edge of the input pulse to the TC1 pin. Either the
When a match between the up-counter and the TC1DRA value is detected, an INTTC1 interrupt is generated
Two or more machine cycles are required for the low-or high-level pulse input to the TC1 pin.
Setting TC1CR<ACAP1> to “1” captures the up-counter value into TC1DRB with the auto capture function.
Event Counter Mode
Table 10-2 Input Pulse Width to TC1 Pin
?
Timer start
High-going
Low-going
Figure 10-4 Event Counter Mode Timing Chart
0
n
1
NORMAL1/2, IDLE1/2 Mode
2
2
2
Page 88
3
3
/fc
/fc
Minimum Pulse Width [s]
Match detect
n − 1
SLOW1/2, SLEEP1/2 Mode
n
0
Counter clear
2
2
3
3
/fs
/fs
1
TMP86FH92DMG
2
(TC1S = 10)
At the
rising edge