Renesas Hitachi H8S/2191, Hardware Manual, Page: 182 / 1065

Rev. 2.0, 11/00, page 155 of 1037
7.8.3 Programmer Mode Operation
Table 7.10 shows how the different operating modes are set when using programmer mode, and
table 7.11 lists the commands used in programmer mode. Details of each mode are given below.
(1) Memory Read Mode
Memory read mode supports byte reads.
(2) 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.
(3) 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.
(4) Status Read Mode
Status polling is used for auto-programming and auto-erasing, and normal termination can be
confirmed by reading the FO6 signal. In status read mode, error information is output if an
error occurs.
Table 7.10 Settings for Each Operating Mode in Programmer Mode
Pin Names
Mode FWE
&(
&(
2(
2(
:(
:(
FO0 to FO7 FA0 to FA17
Read H or L L L H Data output Ain
Output disable H or L L H H Hi-z X
Command write H or L
*
3
L H L Data input Ain
*
2
Chip disable
* 1
H or L L X X Hi-z X
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.
3. For command writes when making a transition to auto-program or auto-erase mode,
input a high level to the FWE pin.