P89LPC9321FN NXP Semiconductors, P89LPC9321FN Datasheet - Page 58

• Manufacturer Part Number: P89LPC9321FN
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin PDIP Tube
• Manufacturer: NXP Semiconductors

NXP Semiconductors
P89LPC9321_1
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
(CPOL = 0)
(CPOL = 1)
clear RI
10.1 Waveforms
SPICLK
SPICLK
(output)
(output)
(output)
clock
(input)
MISO
MOSI
SS
t
QVXH
t
XHDV
t
SPIF
valid
T
0
XLXL
t
SPIF
t
SPIDSU
master MSB/LSB out
t
XHDX
t
XHQX
MSB/LSB in
valid
1
t
SPIDV
t
CHCL
Rev. 01 — 9 December 2008
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
7
© NXP B.V. 2008. All rights reserved.
t
SPIR
002aaa906
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