lpc1224 NXP Semiconductors, lpc1224 Datasheet - Page 48

• Manufacturer Part Number: lpc1224
• Description: Lpc122x 32-bit Arm Cortex-m0 Microcontroller; Up To 128 Kb Flash And 8 Kb Sram
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 16.
T
[1]
[2]
[3]
[4]
LPC122X
Objective data sheet
Symbol
T
SSP master
t
t
t
t
SSP slave
t
t
t
t
amb
DS
DH
v(Q)
h(Q)
DS
DH
v(Q)
h(Q)
cy(clk)
T
main clock frequency f
register), and the SSP CPSDVSR parameter (specified in the SSP clock prescale register).
T
T
T
= 25
cy(clk)
amb
cy(clk)
amb
= 40 C to 85 C; V
= 25 C; V

= (SSPCLKDIV  (1 + SCR)  CPSDVSR) / f
= 12  T
C.
Dynamic characteristics: SSP pins in SPI mode
11.5 SSP/SPI interface
cy(PCLK)
DD(3V3)
Parameter
clock cycle time
data set-up time
data hold time
data output valid time
data output hold time
data set-up time
data hold time
data output valid time
data output hold time
main
.
= 3.3 V; V
DD(3V3)
, the SSP peripheral clock divider (SSPCLKDIV), the SSP SCR parameter (specified in the SSP0CR0
DD(IO)
= 3.0 V to 3.6 V; V
= 3.3 V.
All information provided in this document is subject to legal disclaimers.
Rev. 1.1 — 21 February 2011
DD(IO)
main
Conditions
when only
transmitting
when only
receiving
in SPI mode
in SPI mode
in SPI mode
in SPI mode
in SPI mode
in SPI mode
in SPI mode
in SPI mode
. The clock cycle time derived from the SPI bit rate T
= 3.0 V to 3.6 V.
[1]
[2]
[2]
[2]
[2]
[3][4]
[3][4]
[3][4]
[3][4]
Min
<tbd>
<tbd>
15
0
-
0
0
3  T
-
-
32-bit ARM Cortex-M0 microcontroller
cy(PCLK)
+ 4
Max
-
-
-
-
10
-
-
-
3  T
2  T
cy(PCLK)
cy(PCLK)
cy(clk)
LPC122x
© NXP B.V. 2011. All rights reserved.
is a function of the
+ 11
+ 5
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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