h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 308

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 14-Bit PWM D/A
10.1.2
Figure 10.1 shows a block diagram of the PWM D/A module.
Rev. 4.00 Jun 06, 2006 page 254 of 1004
REJ09B0301-0400
PWX0
PWX1
Legend:
DACR:
DADRA: PWM D/A data register A (15 bits)
DADRB: PWM D/A data register B (15 bits)
DACNT: PWM D/A counter (14 bits)
Block Diagram
PWM D/A control register ( 6 bits)
Clock selection
Control logic
Internal clock
Figure 10.1 PWM D/A Block Diagram
/2
Basic cycle overflow
Basic cycle
compare-match A
Fine-adjustment
pulse addition A
Basic cycle
compare-match B
Fine-adjustment
pulse addition B
Clock
Comparator
Comparator
DACNT
DACR
A
B
DADRA
DADRB
Internal data bus
Module data bus
Bus interface