P89LPC9321 NXP Semiconductors, P89LPC9321 Datasheet - Page 58

• Manufacturer Part Number: P89LPC9321
• Description: The P89LPC9321 is a single-chip microcontroller, available in low cost packages, basedon a high performance processor architecture that executes instructions in two to fourclocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

NXP Semiconductors
P89LPC9321
Product data sheet
Fig 21. Shift register mode timing
Fig 22. External clock timing
Fig 23. SPI master timing (CPHA = 0)
write to SBUF
output data
input data
clear RI
(CPOL = 0)
(CPOL = 1)
10.1 Waveforms
SPICLK
SPICLK
(output)
(output)
(output)
clock
(input)
MISO
MOSI
SS
t
QVXH
t
XHDV
t
SPIF
valid
T
0
XLXL
t
t
SPIF
SPIDSU
master MSB/LSB out
t
XHDX
t
All information provided in this document is subject to legal disclaimers.
XHQX
MSB/LSB in
valid
1
t
SPIDV
t
CHCL
Rev. 2 — 16 November 2010
t
t
t
SPICLKH
SPICLKL
SPIDH
t
SPIF
8-bit microcontroller with accelerated two-clock 80C51 core
valid
2
T
SPICYC
t
t
SPICLKH
SPICLKL
t
CLCX
t
SPIR
valid
3
t
SPIOH
T
cy(clk)
t
SPIR
valid
4
t
CLCH
t
CHCX
master LSB/MSB out
valid
LSB/MSB in
5
t
SPIDV
002aaa907
valid
P89LPC9321
6
002aaa908
valid
set TI
set RI
© NXP B.V. 2010. All rights reserved.
7
t
SPIR
002aaa906
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