Datasheet

LPC408X_7X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 3.1 — 1 September 2014 98 of 138
NXP Semiconductors
LPC408x/7x
32-bit ARM Cortex-M4 microcontroller
[2] T
amb
= 40 C to 85 C; V
DD(3V3)
= 3.0 V to 3.6 V.
[3] T
cy(clk)
= 12  T
cy(PCLK)
. The maximum clock rate in slave mode is 1/12th of the PCLK rate.
[4] T
amb
= 25 C; V
DD(3V3)
= 3.3 V.
Fig 24. SSP master timing in SPI mode
SCK (CPOL = 0)
MOSI
MISO
T
cy(clk)
t
DS
t
DH
t
v(Q)
DATA VALID DATA VALID
t
h(Q)
SCK (CPOL = 1)
DATA VALID
DATA VALID
MOSI
MISO
t
DS
t
DH
DATA VALID DATA VALID
t
h(Q)
DATA VALID
DATA VALID
t
v(Q)
CPHA = 1
CPHA = 0
002aae829