16-Bit Timer 0 Tm0 Control Registers - NEC mPD780852 Series Preliminary User's Manual

6.4 16-Bit Timer 0 TM0 Control Registers

The following four types of registers are used to control 16-bit timer 0 TM0.
• 16-bit timer mode control register (TMC0)
• Capture pulse control register (CRC0)
• Prescaler mode register (PRM0)
• Port mode register 4 (PM4)
(1) 16-bit timer mode control register (TMC0)
This register sets the 16-bit timer operation mode and controls the prescaler output signals.
TMC0 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input clears TMC0 to 00H.
Figure 6-2. 16-Bit Timer Mode Control Register (TMC0) Format
Address: FF72H After Reset: 00H
Symbol 7
TMC0 0
TMC02
0
1
TPOE
0
1
Cautions 1. Before changing the operation mode, stop the timer operation (by setting 0 to TMC02).
2. Bits 1 and 3 to 7 must be set to 0.
CHAPTER 6 16-BIT TIMER 0 TM0
R/W
6 5
0 0
TM0 Operation Mode Selection
Operation stop (TM0 cleared to 0)
Operation enabled
Prescaler signal output disabled
Prescaler signal output enabled
Preliminary User's Manual U14581EJ3V0UM00
4 3 2
0 0 TMC02
Prescaler Output Control
1 0
0 TPOE
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