P89LPC9151 Datasheet, PDF (79/91 Pages) NXP Semiconductors – 8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC

NXP Semiconductors
11.1 Waveforms
P89LPC9151/9161/9171
8-bit microcontroller with 8-bit ADC
t_CHCL
t_CLCX
t_CHCX
t_CLCH
T_cy(clk)
Fig 38. External clock timing (with an amplitude of at least V_i(RMS) = 200 mV)
002aaa907
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 39. Shift register mode timing
SS
SPICLK
(CPOL = 0)
(output)
SPICLK
(CPOL = 1)
(output)
MISO
(input)
MOSI
(output)
T_SPICYC
t_SPIF
t_SPICLKL
t_SPICLKH
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 40. SPI master timing (CPHA = 0)
P89LPC9151_61_71_2
Product data sheet
Rev. 02 — 9 February 2010
LSB/MSB in
t_SPIDV
master LSB/MSB out
t_SPIR
002aaa908
© NXP B.V. 2010. All rights reserved.
79 of 91