M16C28 Datasheet, PDF (177/423 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/28 Group (M16C/28, M16C/28B)
13. Timer S
13.5.1 Single-Phase Waveform Output Mode
Output signal level of the OUTC1j pin becomes high("H") when the INV bit in the G1POCRj (j=0 to 7)
register is set to "0"(output is not reversed) and the base timer value matches the G1POj (j=0 to 7)
register value. The "H" signal switches to a low-level ("L") signal when the base timer reaches "000016".
Table 13.8 lists specifications of single-phase waveform mode. Figure 13.22 lists an example of single-
phase waveform mode operation.
Table 13.8 Single-phase Waveform Output Mode Specifications
Item
Specification
Output waveform
• Free-running operation
(the RST1, RST2, and RST4 bits of the G1BCR1 and G1BCR0 registers are set
to "0" (no reset))
Cycle
: ⁶⁵⁵³⁶
fBT1
m
Default output level width : _fBT1
Inverse level width
65536-m
:
fBT1
• The base timer is cleared to "000016" by matching the base timer with either
following register
(a) G1PO0 register (enabled by setting RST1 bit to "1", and RST4 and RST2 bits to "0"), or
(b) G1BTRR register (enabled by setting RST4 bit to "1", and RST2 and RST1 bits to "0")
Waveform output start condition
Cycle
: ⁿ⁺²
fBT1
Default output level width :
Inverse level width
m
fBT1
n+2-:m
fBT1
m : setting value of the G1POj register (j=0 to 7), 000116 to FFFD16
n : setting value of the G1PO0 register or the G1BTRR register, 000116 to FFFD16
The IFEj bit in the G1FE register is set to "1" (channel j function enabled)
Waveform output stop condition The IFEj bit is set to "0" (channel j function disabled)
Interrupt request
OUTC1j pin ⁽¹⁾
The G1IRj bit in the G1IR register is set to "1" when the base timer value
matches the G1POj register value (See Figure 13.22)
Pulse signal output pin
Selectable function
• Default value set function : Set starting waveform output level
• Inverse output function : Waveform output signal is inversed and provided
from the OUTC1j pin
NOTES:
1. The OUTC10 to OUTC17 pins .
Rev. 2.00 Jan. 31, 2007 ^{page 157} of 385
REJ09B0047-0200