HD64F3644PV Datasheet, PDF (173/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 6 ROM
6.8.3 Operation in PROM Mode
The program/erase/verify specifications in PROM mode are the same as for the standard
HN28F101 flash memory. The H8/3644F, H8/3643F, and H8/3642AF do not have a device
recognition code, so the programmer cannot read the device name automatically. Table 6.13 shows
how the different operating modes are selected when using PROM mode.
Table 6.13 Operating Mode Selection in PROM Mode
Pins
Mode
Read
FVPP VCC
CE OE WE
Read
VCC^* VCC L
L
H
Output disable VCC^* VCC L
H
H
Standby
VCC^* VCC H
X
X
Command Read
VPP VCC L
L
H
write
Output disable VPP VCC L
H
H
Standby
VPP VCC H
X
X
Write
VPP VCC L
H
L
Legend:
L: Low level
H: High level
VPP: VPP level
VCC: VCC level
X: Don’t care
Note: * In these states, the FVPP pin must be set to VCC.
D7 to D0
A16 to A0
Data output
Address input
High impedance
High impedance
Data output
High impedance
High impedance
Data input
V_H: 11.5 V ≤ V_H ≤ 12.5 V
Rev. 6.00 Sep 12, 2006 page 151 of 526
REJ09B0326-0600