H8S2556 Datasheet, PDF (786/982 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family/H8S/2500 Series

Section 20 Flash Memory
20.9.2 Programmer Mode Operation
Table 20.12 and table 20.13 show setting procedure of each operation mode in programmer mode
and each command used in programmer mode, respectively.
• Memory-read mode: Memory read mode supports reading, in bytes, from the user MAT and
user boot MAT
• Auto-program mode: Auto-program mode supports the simultaneous programming to the user
MAT and user boot MAT in 128-byte units. Status polling is used to confirm the completion
of automatic programming.
• Auto-erase mode: Auto-erase mode supports the only automatic erasing of whole user MAT
and user boot MAT. Status polling is used to confirm the completion of automatic erasing.
• Status-read mode: Status polling is used with automatic programming/automatic erasure.
Normal completion can be confirmed by reading the signal on the I/O 6. In status-read mode,
error information is output when an error has occurred.
Table 20.12 Setting Procedure of each Operation Mode of Programmer Mode
Pin Name
Mode
CE
OE
WE
I/O 7 to 0 A 18 to 0
Read
L
L
H
Data output Ain*
Output disable
L
H
H
Hi-Z
X
Command write
L
H
L
Data output Ain*
Chip disable
H
X
X
Hi-Z
X
Notes: Chip disable mode is not a standby state; internally, operating state.
* Ain indicates that address may be input in auto-program mode.
Rev.5.00 Sep. 27, 2007 Page 740 of 932
REJ09B0099-0500