Le58083
Data Sheet
SOP 10. Read SLIC Device Input/Output Register
GCI Command
(53h)
D7
D6
D5
D4
D3
D2
D1
D0
Command
0
1
0
1
0
0
1
1
Output Data
C7
C6
CD1B
C5
C4
C3
CD2
CD1
The logic states present on the CD1, CD2, C3, C4, and C5 pins of the Le58083 Octal SLAC device for the addressed channel
are read using this command, independent of their programmed direction (see SLIC device I/O Direction Register). CD1B is the
multiplexed CD1 bit and is valid only if the E1 multiplexing mode is enabled (EE = 1). If CD1, CD2, C3, C4, and C5 are
programmed as inputs, then the logic states reported are determined by the external driving signal. In addition, CDA (the
debounced state of CD1) and CDB (the debounced state of CD2, non-E1 multiplexed mode) or CD1B (E1 multiplexed mode),
and the logic state present on the C3 pin of the device are sent directly upstream on the C/I bits of the upstream SC channel. If
the CD1, CD2, C3, C4, and C5 pins are programmed as outputs then the logic states of these pins are controlled directly by the
bits present in the C/I portion of the downstream SC channel and are not sent directly upstream in the SC channel. This command
is normally used only to read the bit status via Command 53h. It is also possible although not recommended, if the CD1, CD2,
and C3–C7 pins are programmed as outputs, to write the output state as Command 52h. The register is programmed upon
execution of Command 52h but the status is overwritten when the next C/I portion of the downstream SC channel is received.
SOP 11. Write/Read Debounce Time Register*
GCI Command
(C8/C9h)
D7
D6
D5
D4
D3
D2
D1
D0
Command
I/O Data
1
1
0
0
1
0
0
R/W
ECH
EE1
E1P
DSH3
DSH2
DSH1
DSH0
RSVD
Enable E1 (Global parameter)
EE1 = 0*
E1 Multiplexing is turned off
E1 Multiplexing is turned on
EE1 = 1
E1 Polarity (Global parameter)
E1P = 0*
E1P = 1
E1 is a high-going pulse
E1 is a low-going pulse
Debounce for hook switch (Global parameter)
DSH = 0–15
Debounce period in ms
DSH contains the debouncing time in ms of the CD1 data (usually hook switch) entering the CD1B bit of the
read SLIC device Input/Output register and the CD1B transmitted on the C/I bit of the upstream SC chan-
nel. The input data on CD1 must remain stable for the debounce time in order for the state of CD1B to
change.
Default = 8 ms
RSVD
Reserved for future use. Always write as 0, but 0 is not guaranteed when read.
Enable Chopper (Global parameter)
ECH = 0*
ECH = 1
Chopper clock output is turned off.
Chopper clock output is turned on.
Power Up and Hardware Reset (RST) Value = 20h
Note:
* This command applies to all channels of the device.
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Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
