UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 146

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

144
Caution Be sure to set (1) the interrupt mask flag TMMK51 before clearing (0) TCE51 to avoid generating
Remarks 1. PWM output is at the inactive level in the PWM mode because TCE51 = 0.
an interrupt when TCE51 is cleared. The procedure to clear (0) TCE51 is as follows.
TMMK51 = 1
TCE51 = 0
TMIF51= 0
TMMK51 = 0
TCE51 = 1
TMC51
Symbol
2. If LVS51 and LVR51 are read immediately after data has been set, these bits are 0.
·
·
·
·
·
·
TCE51 TMC516
TMC516
TMC514
TMC511
TCE51
LVS51
TOE51 Timer output control of 8-bit timer/event
7
0
1
0
1
0
1
0
0
1
1
0
1
0
1
Figure 7-5. Format of 8-Bit Timer Mode Control Register 51
Disables count operation after clearing counter
to 0 (disables prescaler).
LVR51
Disables output (port mode).
Starts counting.
Clears and starts on match between TM51 and
CR51.
PWM (free-running) mode
Single mode
Cascade mode (connected to TM50)
counter 51
Enables output.
Disables inverted
operation.
Enables inverted
operation.
mode (TMC516 = 0)
6
Other than PWM
Timer F/F control
; Mask set
; Timer clear
; Interrupt request flag clear
; Mask clear
; Timer start
0
1
0
1
Single mode/cascade mode selection
TM51 operating mode selection
Not affected
Resets timer output F/F (to 0).
Sets timer output F/F (to 1).
Setting prohibited
0
5
TM51 count operation control
Timer output F/F status setting of
8-bit timer/event counter 51
CHAPTER 7 8-BIT TIMER/EVENT COUNTER
TMC514
4
User’s Manual U13029EJ7V1UD
LVS51
3
Low active
High active
Active level selection
LVR51 TMC511 TOE51
(TMC516 = 1)
PWM mode
2
1
0
Address
FF74H
After reset
00H
R/W
R/W