Motorola M68MPB916X1 User Manual page 37

Table 4-7. Logic Analyzer Connector J13 Pin Assignments (continued)
PIN
8
9
10
11
12
13 – 15
16
17 – 19
20
M68MPB916X1UM/D
MNEMONIC
BR / BUS REQUEST – Active-low input signal that indicates
an external device requires bus mastership.
CHIP SELECT 0 – Output signal that selects peripheral
CS0 or memory devices at programmed addresses.
BG / BUS GRANT – Active-low output signal that indicates
the MCU has relinquished the bus.
CSM INTERNAL MODULE CHIP SELECT – CSM is not
supported on the M68HC916X1 MCU.
PULL-UP Not connected; pulled high through a resistor on the
MPB.
CLKOUT SYSTEM CLOCK OUTPUT – MCU internal clock
output signal.
A23 / ADDRESS BUS BIT 23 – One bit of the 24-bit address
bus.
CS10 CHIP SELECT 10 – Output signal that selects
peripheral or memory devices at programmed
addresses.
PULL-UP Not connected; pulled high through a resistor on the
MPB.
A19 / ADDRESS BUS BIT 19 – One bit of the 24-bit address
bus.
CS6 CHIP SELECT 6 – Output signal that selects peripheral
or memory devices at programmed addresses.
A18 – A16 ADDRESS BUS 18 – 16 – Three bits of the 24-bit
address bus.
GND GROUND
MEVB SUPPORT INFORMATION
SIGNAL
4-7