17.20.3 Programmer Mode Operation - Renesas H8S/2319 series Hardware Manual

17.20.3 Programmer Mode Operation

Table 17-35 shows how the different operating modes are set when using programmer mode, and
table 17-36 lists the commands used in programmer mode. Details of each mode are given below.
Memory Read Mode: Memory read mode supports byte reads.
Auto-Program Mode: Auto-program mode supports programming of 128 bytes at a time. Status
polling is used to confirm the end of auto-programming.
Auto-Erase Mode: Auto-erase mode supports automatic erasing of the entire flash memory.
Status polling is used to confirm the end of auto-erasing.
Status Read Mode: Status polling is used for auto-programming and auto-erasing, and normal
termination can be confirmed by reading the I/O
output if an error occurs.
Table 17-35 Settings for Each Operating Mode in Programmer Mode
Mode
Read
Output disable
Command write
1
Chip disable *
Legend:
H: High level
L: Low level
Hi-Z: High impedance
×:
Don't care
Notes: 1. Chip disable is not a standby state; internally, it is an operation state.
2. Ain indicates that there is also address input in auto-program mode.
Rev. 5.00, 12/03, page 652 of 1088
CE CE OE OE
CE CE OE OE
L L
L H
L H
×
H
signal. In status read mode, error information is
6
Pin Names
WE WE
WE WE
I/O
H Data output
H Hi-Z
L Data input
×
Hi-Z
to I/O A to A
7 0 18 0
Ain
×
2
Ain *
×