Block Diagram - Renesas Hitachi H8S/2194 Series Hardware Manual

28.13.2 Block Diagram

Figure 28.47 shows a block diagram of the CTL circuit.
PB-CTL
CTL
detector
Schmitt
amplifier
CTL(+)
Duty des-
FW/RV
criminator
Write control
circuit
+ -
REC-
CTL amplifier
CTL(-)
Figure 28.47 Block Diagram of CTL Circuit
VISS detect
control circuit
VISS write
Bit pattern
register
Duty I/O flag
Rev. 2.0, 11/00, page 747 of 1037
CTL mode
IRRCTL
VISS
REF30X
Internal bus