© 2000 Scenix Semiconductor, Inc. All rights reserved.
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SX48BD/SX52BD/SX52BD75/SX52BD100
Figure 9-1. RTCC and WDT Block Diagram
WDTE (from FUSE Word)
RTCC pin
MUX
8-Bit Prescaler
MUX (8 to 1)
8-Bits
WDT Timeout
Data Bus
WDT
MUX
M
U
X
RTCC
M
U
X
FOSC
RST
RTE_ES
PSA
PS2
PS1
PS0
OPTION
Register
RTCC Rollover
Interrupt
RTE_IE
RTW
RTCC Interrupt Enable
Interrupt
to CPU
Pending Flag
(RTCCOV bit in
T1CNTB Register,
SX48/52BD only)
