ISP1161A1BM,557 NXP Semiconductors, ISP1161A1BM,557 Datasheet - Page 16
ISP1161A1BM,557
Manufacturer Part Number
ISP1161A1BM,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1161A1BM557.pdf
(137 pages)
Specifications of ISP1161A1BM,557
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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Philips Semiconductors
9397 750 13961
Product data
Most of the ISP1161A1 internal control registers are 16-bit wide. Some of the internal
control registers, however, have 32-bit width.
control register is accessed. The complete cycle of accessing a 32-bit register
consists of a command phase followed by two data phases. In the two data phases,
the microprocessor first reads or writes the lower 16-bit data, followed by the upper
16-bit data.
To further describe the complete access cycles of the internal control registers, the
status of some pins of the microprocessor bus interface are shown in
Figure 15
Fig 12. 16-bit register access cycle.
Fig 13. 32-bit register access cycle.
Fig 14. Accessing HC control registers.
WR
RD
CS
D [ 15:0 ]
A1, A0
for the HC and the DC respectively.
Rev. 03 — 23 December 2004
write command
(16 bits)
HC command
write
code
01
write command
(16 bits)
16-bit register access cycle
32-bit register access cycle
read/write data
(lower 16 bits)
USB single-chip host and device controller
HC register data
(lower word)
read
write
write
read
00
Figure 13
read/write data
(16 bits)
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
shows how the 32-bit internal
read/write data
(upper 16 bits)
HC register data
MGT937
(upper word)
ISP1161A1
write
write
t
read
read
00
Figure 14
MGT938
t
15 of 136
MGT939
and
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