TM4C123GE6PZ Datasheet, PDF (1429/1445 Pages) Texas Instruments – Tiva™ TM4C123GE6PZ Microcontroller

Tiva^™ TM4C123GE6PZ Microcontroller
24.15 Synchronous Serial Interface (SSI)
Table 24-34. SSI Characteristics
Parameter
No.
S1
Parameter Parameter Name
T_{CLK_PER}
SSIClk cycle time, as master^a
SSIClk cycle time, as slave^b
Min
Nom Max
Unit
40
-
-
ns
150
-
-
ns
SSIClk high time, as master
S2
T_{CLK_HIGH SSIClk high time, as slave}
20
-
-
ns
75
-
-
ns
SSIClk low time, as master
S3
T_{CLK_LOW SSIClk low time, as slave}
20
-
-
ns
75
-
-
ns
S4
T_CLKR
SSIClk rise time^c
S5
T_CLKF
SSIClk fall time^c
1.25
-
-
ns
1.25
-
-
ns
S6
T_TXDMOV Master Mode: Master Tx Data Output (to slave)
-
Valid Time from edge of SSIClk
-
15.7
ns
S7
T_TXDMOH Master Mode: Master Tx Data Output (to slave)
0.31
-
-
ns
Hold Time from next SSIClk
S8
T_RXDMS Master Mode: Master Rx Data In (from slave)
17.15
-
-
ns
setup time
S9
T_RXDMH Master Mode: Master Rx Data In (from slave) hold
0
-
-
ns
time
S10
T_TXDSOV Slave Mode: Master Tx Data Output (to Master)
-
Valid Time from edge of SSIClk
- 77.74^d
ns
S11
T_TXDSOH Slave Mode: Slave Tx Data Output (to Master)
55.5^e
-
-
ns
Hold Time from next SSIClk
S12
T_RXDSSU Slave Mode: Rx Data In (from master) setup time
0
-
-
ns
S13
T_RXDSH
Slave Mode: Rx Data In (from master) hold time
51.55^f
-
-
ns
a. In master mode, the system clock must be at least twice as fast as the SSIClk.
b. In slave mode, the system clock must be at least 12 times faster than the SSIClk.
c. Note that the delays shown are using 8-mA drive strength.
d. This MAX value is for the minimum T_SYSCLK (12.5 ns). To find the MAX T_TXDSOV value for a larger T_SYSCLK, use the
equation: 4*T_SYSCLK+27.74.
e. This MIN value is for the minimum slave mode T_SYSCLK (12.5 ns). To find the MIN T_TXDSOH value for a larger T_SYSCLK,
use the equation: 4*T_SYSCLK+5.50.
f. This MIN value is for the minimum slave mode T_SYSCLK (12.5 ns). To find the MIN T_RXDSH value for a larger T_SYSCLK, use
the equation: 4*T_SYSCLK+1.55.
June 12, 2014
Texas Instruments-Production Data
1429