P89LPC952 Datasheet, PDF (57/69 Pages) NXP Semiconductors – 8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 10-bit ADC

NXP Semiconductors
P89LPC952/954
8-bit microcontroller with 10-bit ADC
11.1 Waveforms
T_XLXL
clock
t_QVXH
t_XHQX
output data
0
1
2
3
4
5
6
7
write to SBUF
input data
t_XHDV
t_XHDX
set TI
valid
valid
valid
valid
valid
valid
valid
valid
clear RI
set RI
002aaa906
Fig 18. Shift register mode timing
Fig 19. External clock timing
t_CHCL
t_CLCX
t_CHCX
t_CLCH
T_cy(clk)
002aaa907
SS
SPICLK
(CPOL = 0)
(output)
SPICLK
(CPOL = 1)
(output)
MISO
(input)
MOSI
(output)
T_SPICYC
t_SPIF
t_SPICLKH
t_SPICLKL
t_SPIR
t_SPIF
t_SPICLKL
t_SPIR
t_SPICLKH
t_SPIF
t_SPIDSU t_SPIDH
MSB/LSB in
t_SPIDV
master MSB/LSB out
t_SPIOH
Fig 20. SPI master timing (CPHA = 0)
P89LPC952_954_4
Product data sheet
Rev. 04 — 24 July 2008
LSB/MSB in
t_SPIDV
t_SPIR
master LSB/MSB out
002aaa908
© NXP B.V. 2008. All rights reserved.
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