
Agere Systems Inc.
139
Data Sheet
July 2001
T8302 Internet Protocol Telephone
Advanced RISC Machine (
ARM
)
11 10/100 2-Port Repeater and Backplane Segment Controller
(continued)
11.5.6 Global Interrupt Enable Register
The
global interrupt enable register
is used to disable/enable a particular bit in the
global interrupt status reg-
ister
to drive the pin. If any bit of the
global interrupt status register
is set and the corresponding
global inter-
rupt enable register
bit is cleared, the device will drive the pin low until the
global interrupt status register
is
read. Reading the
global interrupt status register
clears the interrupt. This register will default to the values in
parenthesis after reset.
Table 119. Global Interrupt Enable Register
Address 0xE001 2180
13, 5
SM1
SM0
Bit #
Name
31:16
RSVD
15, 7
ISO1
ISO0
State on RST
(0)
(1)
14, 6
CLIS1
CLIS0
12, 8, 0
RSVD
11, 3
10, 2
VLE1
VLE0
9, 1
CAS1
CAS0
PHY_INT1
PHY_INT0
Description
Bit #
31:16
15
Name
RSVD
ISO1
Reserved.
ISO1 interrupt enable. Setting this bit to 1 enables generation of repeater
interrupt if the
ISO
bit in the
global interrupt status register
is set.
CLIS1 interrupt enable.
Setting this bit to 1 enables generation of
repeater interrupt if the
CLIS
bit in the
global interrupt status register
is set.
SM1 interrupt enable.
Setting this bit to 1 enables generation of repeater
interrupt if the
SM
bit in the
global interrupt status register
is set.
Reserved.
PHY1 interrupt enable.
VLE1 interrupt enable. Setting this bit to 1 enables generation of
repeater interrupt if the
VLE
bit in the
global interrupt status register
is set.
CAS1 interrupt enable. Setting this bit to 1 enables generation of
repeater interrupt if the
CAS
bit in the
global interrupt status register
is set.
Reserved.
ISO0 interrupt enable. Setting this bit to 1 enables generation of repeater
interrupt if the
ISO
bit in the
global interrupt status register
is set.
CLIS0 interrupt enable.
Setting this bit to 1 enables generation of
repeater interrupt if the
CLIS
bit in the
global interrupt status register
is set.
SM0 interrupt enable.
Setting this bit to 1 enables generation of repeater
interrupt if the
SM
bit in the
global interrupt status register
is set.
Reserved.
PHY0 interrupt enable.
VLE0 interrupt enable.
Setting this bit to 1 enables generation of
repeater interrupt if the
VLE
bit in the
global interrupt status register
is set.
CAS0 interrupt enable. Setting this bit to 1 enables generation of
repeater interrupt if the
CAS
bit in the
global interrupt status register
is set.
Reserved.
14
CLIS1
(1)
13
SM1
(1)
12
11
10
RSVD
PHY_INT1
VLE1
—
—
(1)
9
CAS1
(1)
8
7
RSVD
ISO0
—
(1)
6
CLIS0
(1)
5
SM0
(1)
4
3
2
RSVD
PHY_INT0
VLE0
—
—
(1)
1
CAS0
(1)
0
RSVD
—