isppac-powr1220at8 Lattice Semiconductor Corp., isppac-powr1220at8 Datasheet - Page 36

• Manufacturer Part Number: isppac-powr1220at8
• Description: In-system Programmable Power Supply Monitoring, Sequencing And Margining Controller
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Figure 1-26. I
The digital outputs may also be monitored and controlled through the I
status of any given digital output may be read by reading the contents of the associated OUTPUT_STATUS[2:0]
register. Note that in the case of the outputs, the status reflected by these registers reflects the logic signal used to
drive the pin, and does not sample the actual level present on the output pin. For example, if an output is set high
but is not pulled up, the output status bit corresponding with that pin will read ‘1’, but a high output signal will not
appear on the pin.
Digital outputs may also be optionally controlled directly by the I
may be driven either from the PLD ORP or from the contents of the GP_OUTPUT[2:0] registers with the choice
user-settable in E
GP_OUTPUT registers.
2
C Digital Input Interface
2
CMOS memory. Each output may be independently set to output from the PLD or from the
0x11 - INPUT_VALUE (Read/Write)
0x06 - INPUT_STATUS (Read Only)
IN[2..6]
b7
b7
X
X
IN1
USERJTAG
b6
b6
X
X
Bit
Input_Value
IN6
b5
b5
I6
PLD Output/Input_Value Register Select
5
5
I
2
C Interface Unit
IN5
b4
I5
b4
MUX
MUX
(E 2 Configuration)
1-36
6
5
IN4
b3
b3
I4
Input_Status
2
C bus instead of by the PLD array. The outputs
5
IN3
b2
b2
I3
ispPAC-POWR1220AT8 Data Sheet
2
C interface, as shown in Figure 1-27. The
IN2
b1
b1
I2
Array
PLD
IN1
b0
b0
X