Motorola M68EML08EY User Manual page 24

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Table 3-1 Target Connector (J2) Signal Descriptions
Pin
1 — 8, 10, 12,
14, 16, 18 —
21, 23, 24, 28,
31, 38, 40
9, 11, 13, 15, PB3 — PB7
17
22
25, 26 PC4, PC3
27, 29, 30, 35, PA0, PA3 —
36
(not in exact
32
33, 34 PE0, PE1
37
39
M68EML08EY Emulation Module - Version 1.0
22
Label
G GROUND
PORT B (lines 3—7) — General-purpose I/O lines controlled by
software via data direction and data registers. (Other port B lines are
available on connector J4.)
RST RESET — Active-low signal. If an output, starts a target reset. If an
input, confirms reset of the target MCU.
PORT C (lines 4, 3) — General-purpose I/O lines controlled by software
via data direction and data registers. (Other port C lines are available
on connector J4.)
PORT A (lines 0, 3—6) — General-purpose I/O lines controlled by
PA6 software via data direction and data registers. (Port A lines 1 and 2 are
available on connector J4.)
order)
EV EXTERNAL VOLTAGE DETECT — Input signal that detects
target-system power-up.
PORT E (lines 0, 1) — General-purpose I/O lines controlled by software
via data direction and data registers.
IRQ TARGET INTERRUPT — Active-low input line for requesting a target
interrupt.
PD0 PORT D (line 0) — General-purpose I/O lines controlled by software via
data direction and data registers. (Port D line 1 is available on
connector J4.)
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