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Rev. 2.0, 11/00, page 424 of 1037
21.1.2
Block Diagram
Figure 21.1 shows a block diagram of the 14-bit PWM.
[Legend]
PWCR
/4
/2
PWDRL
: PWM control register
: PWM data register L
PWDRU
PWM14
: PWM data register U
: PWM14 output pin
Internal data bus
PWCR
PWDRL
PWDRU
PWM waveform
generator
PWM14
Figure 21.1 Block Diagram of 14-Bit PWM
21.1.3
Pin Configuration
Table 21.1 shows the 14-bit PWM pin configuration.
Table 21.1 Pin Configuration
Name
Abbrev.
I/O
Function
PWM 14-bit square-wave output pin
PWM14
*
Output
14-bit PWM square-wave output
Note:
*
This pin also functions as P40 general I/O pin. When using this pin, set the pin
function by the port mode register 4 (PMR4). For details, see section 11.6, Port 4.
Summary of Contents for Hitachi H8S/2191
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