MC68HC705CT4 Datasheet, PDF (112/152 Pages) Freescale Semiconductor, Inc – General Release Specification

EPROM
Freescale Semiconductor, Inc.
15.4.2 Programming Register
This register is used to program the EPROM array. Only the LATCH and
EPGM bits are available in user mode. To program a byte of EPROM,
set LATCH, write data to the desired address, and then set EPGM for
t_EPGM. EPTST, MBE, TS1, and TS0 are available only in the special
modes, boot and test.
Address: $0011
Bit 7
6
5
4
3
2
1
Read:
MORON EPTST MBE
TS1
TS0 LATCH
0
Write:
Reset: 0
0
0
0
0
0
0
Figure 15-4. Programing Register (PROG)
Bit 0
EPGM
0
MORON — MOR On
READ: Only in special modes, user mode returns a logic 0
WRITE: Only in special modes
1 = Enables the decode to the MOR register latch. This feature
makes production testing and emulation easier. It is only valid
when IOOFF is cleared to zero.
0 = The MOR register is not in the map; INTSELB is not pulled at
$1F00.
EPTST — EPROM Test Mode Enable
READ: Only in special modes, user mode returns a logic 0
WRITE: Only in special modes
1 = Enables the functions of TS1 and TS0.
0 = TS1 and TS0 functions are disabled.
General Release Specification
MC68HC705CT4 — Rev. 2.0
112
EPROM
MOTOROLA
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