跳转到主内容
Knowledgebase
Home
Renesas Electronics China - Knowledgebase

How to switch the functions of BSC related pins?

Latest Updated:03/25/2009

Question:

BSC(Bus state controller) related pins have some functions (for example, WE3#/DQMUU/ICIOWR#). How to switch these functions?

Answer:

By specifying the memory type being connected to each area on BSC, the pin function is automatically switched on every access to each area.

For example, if it is WE3#/DQMUU/ICIOWR#, it operates as WE3# in the area specified usual memory such as SRAM/ROM. Likewise; it operates as DQMUU in the area specified SDRAM and as ICIOWR# in the area specified PCMCIA.

Suitable Products
SH7729R
SH7727
SH7720
SH7709S
SH7706
SH7705
SH7710