IDT88K8483 Integrated Device Technology, IDT88K8483 Datasheet - Page 68
IDT88K8483
Manufacturer Part Number
IDT88K8483
Description
Spi-4 Exchange Document Issue 1.0
Manufacturer
Integrated Device Technology
Datasheet
1.IDT88K8483.pdf
(162 pages)
- Current page: 68 of 162
- Download datasheet (3Mb)
Time base
PMON 1ms Timer Register (p.
PMON 1ms Timer Register (p.
Internal PMON Time Base
generated based on the 1ms timer, and forwarded to the interrupt module and to the internal embedded processor.
PMON 1ms Timer Register (p. 145)
ates a TIMEBASE interrupt event to the interrupt module. The delay between the time base trigger and the TIMEBASE interrupt event is 3 to 4ms.
Subsequent trigger is ignored during the this period. The internal PMON time base wave form is shown in
External PMON Time Base
ates a TIMEBASE interrupt to the interrupt module. The delay between the time base trigger and the TIMEBASE event is 3 to 4 ms. Subsequent
trigger is ignored during this period. The external PMON time base wave form is shown in
IDT IDT88K8483
A single PMON time base is provided for the device. The time base can be generated internally or externally according to the INTERNAL field in
The device has a 1ms accurate timer. The 1ms timer register specifies the number of MCLK for generating 1ms time intervals. A 10ms event is
In internal timer mode, the device generates one time base trigger in each second. In internal OBC mode, writing 1 to the MANUAL field in the
The time base trigger generates a 16-MCLK high pulse to TIMEBASE pin, and it updates the PMON counters. The time base trigger also gener-
A positive edge on the TIMEBASE pin generates an externally time base trigger. The time base trigger updates the PMON counters, and gener-
Signal to TIMEBASE pin
TIMEBASE interrupt
Timebase trigger
3’b0xx
3’b11x
3’b10x
[INTERNAL, TIMER, MANUAL]
145). The time base sources are described in the
145). The internal time base can be generated by a free running timer or OBC according to the TIMER field in the
generates a time base trigger. The one second is generated based on the 1ms timer.
3-4ms for PMON updating
Figure 34 Internal PMON Time Base
Table 8
Time Base Source
68 of 162
16 MCLK
The time base is generated externally.
The internal time base is generated by a free running
timer.
The internal time base is generated by OBC.
cycles
Table
Time base trigger source
8.
Figure 35.
Figure 34.
October 20, 2006
Related parts for IDT88K8483
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Integrated Processor
Manufacturer:
Integrated Device Technology, Inc.
Part Number:
Description:
Integrated Riscontroller for Low-Cost Systems
Manufacturer:
Integrated Device Technology, Inc.
Part Number:
Description:
INTEGRATED RISController FOR LOW-COST SYSTEMS
Manufacturer:
Integrated Device Technology, Inc.
Part Number:
Description:
SwitchStar ATM Cell Based 1.2Gbps non-blocking Integrated Switch Controller
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
3.3V CMOS 16-bit bidirectional transceiver
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
3.3 CMOS octal buffer/line driver
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
Fast CMOS octal registered transceivers
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
Fast CMOS octal bidirectional transceivers
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
Fast CMOS 16-bit buffer/line driver
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
2.5 V/3.3 V 10 Bit High Bandwidth Bus Switch with Precharged Outputs
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
High-Speed CMOS Quick Switch 16:8 Multiplexer
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
QUICKSWITCH?? PRODUCTS HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH IDTQS32X245Q2QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
2.5V / 3.3V 16-BIT HIGH BANDWIDTH BUS SWITCH
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
QUICKSWITCH PRODUCTS 2.5V / 3.3V 8-BIT HIGH BANDWIDTH BUS SWITCH
Manufacturer:
Integrated Device Technology, Inc.
Datasheet:
Part Number:
Description:
QUICKSWITCH PRODUCTS 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH
Manufacturer:
Integrated Device Technology, Inc.
Datasheet: