26.13.2 Block Diagram - Hitachi H8S/2199 Hardware Manual

Single-chip microcomputer
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26.13.2 Block Diagram

Figure 26.47 shows a block diagram of the CTL circuit.
CTL
detector
Schmitt
amplifier
CTL(+)
PB-CTL
Duty dis-
FW/RV
criminator
Write control
circuit
+ -
REC-
CTL amplifier
CTL(-)
Figure 26.47 Block Diagram of CTL Circuit
VISS detect
control circuit
VISS write
Bit pattern
register
Duty I/O flag
CTL mode
IRRCTL
VISS
REF30X
Internal bus
Rev. 1.0, 02/00, page 685 of 1141

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