z85230 ZiLOG Semiconductor, z85230 Datasheet - Page 12

• Manufacturer Part Number: z85230
• Description: Enhanced Serial Communications Controller
• Manufacturer: ZiLOG Semiconductor

Z85230/Z80230
Product Specification
7
This pin is latched concurrently with the
CS0 (Chip Select 0 (Input, Active Low)).
addresses on A7-A0 and must be Low for the intended bus transaction to occur.
This second chip select pin must be High
CS1 (Chip Select 1 (Input, Active High)).
before and during the intended bus transaction.
This pin provides timing for the transfer of data
DS (Data Strobe (Input, Active Low)).
into and out of the Z80230. If AS and DS are both Low, this condition is interpreted as a
RESET.
Addresses on A7-A0 are latched by the rising
AS (Address Strobe (Input, Active Low)).
edge of this signal.
PS005303-0907
Pin Descriptions