CS181002-CQR Cirrus Logic Inc, CS181002-CQR Datasheet - Page 12

• Manufacturer Part Number: CS181002-CQR
• Description: Audio DSPs IC CobraNet Audio Networking Processor
• Manufacturer: Cirrus Logic Inc

Specifications of CS181002-CQR

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CobraNet Hardware User’s Manual
Pinout and Signal Descriptions
4.2
4.2.1 Host Port Signals
4.2.2 Asynchronous Serial Port (UART Bridge) Signals
12
HADDR[3:0]
HDATA[7:0]
UART_TX_OE
UART_RXD
UART_TXD
HREQ
Signal
HACK
HRW
HWR
HRD
HDS
HEN
HCS
Signal
Signal Descriptions
Host Request
Host Address
Host Enable
Description
Host Strobe
The host port is used to manage and monitor the CobraNet interface. Electrical operation
and protocol is detailed in the
Manual.
The host port can operate in two modes in order to accomodate Motorola
interfaces. The default mode is Motorola. Intel mode is set via a firmware modification.
Level-shifting drive circuits are typically required between these signals and any external
connections.
Host Read
Host Write
Host Data
Host Alert
Direction
Select
Host
Transmit Drive Enable
Asynchronous Serial
Asynchronous Serial
Transmit Data
Receive Data
Description
Direction
In/Out
Out
Out
In
In
In
In
In
In
In
A[17:11]
J1:A19,
J1:A20,
A[10:8]
J1:A4
J1:A4
J1:A6
J1:A3
J1:A5
J1:A5
J1:A7
J1:A7
CM-2
Pin #
Direction
©
Table 2-1: Host Port Signals
Copyright 2005 Cirrus Logic, Inc.
Out
Out
In
"Host Management Interface (HMI)" on page 23
105, 106, 109,110
CS4961xx Pin #
111, 112, 114,
115, 117, 118,
CS1810xx/
J1:B1
J1:A2
J1:A1
CM-2
Pin #
102, 121
107
107
140
103
102
103
104
104
CS4961xx Pin #
CS1810xx/
26
25
23
Host port data.
Host port address.
Host port transfer direction (Motorola mode).
Host Read (Intel mode).
Host port data request.
Host port interrupt request.
Host port strobe (Motorola mode).
Host Write (Intel mode).
Host Port Enable.
Select (Intel mode).
Pull-up to VCC if unused.
Enable transmit (active high) drive for
two wire multi-drop interface.
Notes
Notes
®
or Intel
of this
DS651UM23
Version 2.3
®
style