Xerox 4215 MICR MRP Guía De Instalación

INTERFACE SUPPORT

Figure B-4 illustrates the parallel interface timing.  Refer to Table
B-2 for timing requirements. 

Figure B-4.  Parallel interface timing diagram

Table B-2.

* Signal is active low

1

Data Setup Time before STROBE* True

1.0 µs

2

Data Hold Time after STROBE False

1.0 µs

3

STROBE* True pulse width

1.0 µs

500 µs

4

STROBE* True to BUSY True

0

1.5 µs

5

BUSY True duration when receiving data

2.6 µs

5.1 µs

6

ACKNOWLEDGE* False to BUSY False

0

10 µs

7

ACKNOWLEDGE* True pulse width

2.5 µs

5.0 µs

8

BUSY False to start of next cycle

0

9

BUSY True before:
ERROR* set True
SELECT set False
PAPER ERROR set True

1.0 µs

10 ACKNOWLEDGE True after:

ERROR set False
SELECT set True
PAPER ERROR set False

1.0 µs

XEROX 4219/MRP AND 4215/MRP INSTALLATION PLANNING GUIDE

B-5