a2f500m3b-1csh484 Actel Corporation, a2f500m3b-1csh484 Datasheet - Page 101

• Manufacturer Part Number: a2f500m3b-1csh484
• Description: Actel
• Manufacturer: Actel Corporation

Serial Peripheral Interface (SPI) Characteristics
Table 2-97 • SPI Characteristics
Symbol
sp1
sp2
sp3
sp4
sp5
Notes:
1. These values are provided for a load of 35 pF. For board design considerations and detailed output buffer resistances,
2. For allowable pclk configurations, refer to the Serial Peripheral Interface Controller section in the
use the corresponding IBIS models located on the Actel website:
http://www.actel.com/download/ibis/default.aspx.
Microcontroller Subsystem User’s
Commercial Case Conditions: T
SPI_x_CLK minimum period
SPI_x_CLK = PCLK/2
SPI_x_CLK = PCLK/4
SPI_x_CLK = PCLK/8
SPI_x_CLK = PCLK/16
SPI_x_CLK = PCLK/32
SPI_x_CLK = PCLK/64
SPI_x_CLK = PCLK/128
SPI_x_CLK = PCLK/256
SPI_x_CLK minimum pulse width high
SPI_x_CLK = PCLK/2
SPI_x_CLK = PCLK/4
SPI_x_CLK = PCLK/8
SPI_x_CLK = PCLK/16
SPI_x_CLK = PCLK/32
SPI_x_CLK = PCLK/64
SPI_x_CLK = PCLK/128
SPI_x_CLK = PCLK/256
SPI_x_CLK minimum pulse width low
SPI_x_CLK = PCLK/2
SPI_x_CLK = PCLK/4
SPI_x_CLK = PCLK/8
SPI_x_CLK = PCLK/16
SPI_x_CLK = PCLK/32
SPI_x_CLK = PCLK/64
SPI_x_CLK = PCLK/128
SPI_x_CLK = PCLK/256
SPI_x_CLK, SPI_x_DO, SPI_x_SS rise time (10%-90%)
SPI_x_CLK, SPI_x_DO, SPI_x_SS fall time (10%-90%)
This section describes the DC and switching of the SPI interface. Unless otherwise noted, all output
characteristics given for a 35 pF load on the pins and all sequential timing characteristics are related to
SPI_x_CLK. For timing parameter definitions, refer to
Description and Condition
Guide.
J
= 85ºC, VDD = 1.425 V, –1 Speed Grade
R e v i s i o n 3
Figure 2-47 on page
1
1
Actel SmartFusion Intelligent Mixed Signal FPGAs
A2F200
0.16
0.32
0.64
1.28
2.56
0.08
0.16
0.32
0.64
1.28
0.08
0.16
0.32
0.64
1.28
NA
NA
NA
4.7
3.4
40
80
20
40
20
40
2-90.
A2F500
0.16
0.32
0.64
1.28
2.56
0.08
0.16
0.32
0.64
1.28
0.08
0.16
0.32
0.64
1.28
4.7
3.4
20
40
80
10
20
40
10
20
40
SmartFusion
Unit
µs
µs
µs
µs
µs
µs
µs
µs
µs
us
µs
µs
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2- 89