SH7040 Datasheet, PDF (712/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

Address for MCU
modes 0, 1, 2, 3
H'00000000
Address for
PROM mode
H'0000
On-chip
ROM space
(area 0)
H'0001FFFF (128-kbyte version)
H'1FFFF (128-kbyte version)
Figure 21.5 On-Chip ROM Memory Map
21.3 PROM Programming
The PROM mode write/verify specifications are the same as those of the standard EPROM
HN27C101. However, because the page program format is not supported, do not set the PROM
writer to the page programming mode. PROM writers that only support page programming mode
cannot be used. When selecting a PROM writer, confirm that it supports the byte-by-byte high-
speed, high-reliability programming format.
21.3.1 Programming Mode Selection
There are two on-chip PROM programming modes: write and verify (reads and confirms written
data). The mode is selected by using the pins (table 21.2).
Table 21.2 PROM Programming Mode Selection
Pin
Mode
Write
Verify
CE
OE
PGM V_PP
V_CC
0
1
0
V_PP
V_CC
0
0
1
Programming 0
0
0
Prohibited
0
1
1
1
0
0
1
1
1
Note: 0: low level, 1: high level, V_PP: V_PP level, V_CC: V_CC level.
I/O7–I/O0
Data input
Data output
High
impedance
A16–A0
Address
input
674