ES1371 Datasheet, PDF (28/37 Pages) List of Unclassifed Manufacturers – ENSONIQ AudioPCI 97 digital controller

ENSONIQ Proprietary Information
ADC Frame Register 1
Addressable as longword
Power on reset value xxxxxxxxH
Bit(s) R/W Name
31:0 R/W PCI ADDRESS
Address 30H
Memory Page 1101b
Direct Mapped
Function
This longword is the physical PCI address of ADC sample buffer in
system memory
ADC Frame Register 2
Addressable as longword
Power on reset value xxxxxxxxH
Bit(s) R/W Name
31:16 R/W Current Count
15:0 R/W Buffer Size
Address 34H
Memory Page 1101b
Direct Mapped
Function
This 16 bit counter indicates the number of longwords that have
been transferred.
This 16 bit value indicates the number of longwords in a buffer
minus one.
UART FIFO Register
Addressable as longword
Power on reset value xxxxxxxxH
Bit(s) R/W Name
31:9 R/W OPEN
8
R/W BYTE VALID
7:0 R/W UART BYTE
Address 30, 34, 38, 3CH
Memory Pages 1110, 1111b
Direct Mapped
Function
These bits are not used.
This bit indicates whether the UART byte contains valid data.
0 - UART byte not valid
1 - UART byte valid
This byte is a byte the has been received by the UART block
through the MIDI interface.
ENSONIQ Proprietary Information
ENSONIQ AudioPCI 97 Specification Rev 1.1 Oct 1, 1997
28