AT90LS8535_14 Datasheet, PDF (83/127 Pages) ATMEL Corporation – Data and Nonvolatile Program Memories

AT90S/LS8535
Figure 57. Port B Schematic Diagram (Pin PB7)
MOS
PULL-
UP
PB7
RD
RESET
R
Q
D
DDB7
C
WD
RESET
QR D
PORTB7
C
RL
WP
WP: WRITE PORTB
WD: WRITE DDRB
RL: READ PORTB LATCH
RP: READ PORTB PIN
RD: READ DDRB
SPE: SPI ENABLE
MSTR MASTER SELECT
RP
MSTR
SPE
SPI CLOCK
OUT
SPI CLOCK
IN
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1041H–11/01