ml7074a-004 Oki Semiconductor, ml7074a-004 Datasheet - Page 20

• Manufacturer Part Number: ml7074a-004
• Description: Voip Codec
• Manufacturer: Oki Semiconductor

These are the address input pins for use during an access of the frame, DMA, or control registers. The different
Transmit buffer (TX Buffer)
A7 to A0 = 10xxxxxxb (the lower 6 bits are not valid)
Receive buffer (RX Buffer)
A7 to A0 = 01xxxxxxb (the lower 6 bits are not valid)
Control register (CR)
A7 to A0 = 00xxxxxxb
These are the data input/output pins for use during an access of the frame, DMA, or control registers. Connect
This is the chip select input pin for use during a frame or control register access.
This is the read enable input pin for use during a frame, DMA, or control register access.
This is the write enable input pin for use during a frame, DMA, or control register access.
addresses will be the following.
pull-up resistors to these pins since they are I/O pins. When the 8-bit bus access method is selected by CR11-B5,
only D0 to D7 become valid. Since the higher 8 bits D8 to D15 will always be in the input state when the 8-bit bus
access method is selected (CR11-B5 = “1”), tie them to “0” or “1” inputs.
A0 to A7
D0 to D15
CSB
RDB
WRB
OKI Semiconductor
FEDL7074-003DIGEST-01
ML7074-004GA
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