mc56f801 Freescale Semiconductor, Inc, mc56f801 Datasheet - Page 107

• Manufacturer Part Number: mc56f801
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

10.13 JTAG Timing
Freescale Semiconductor
Preliminary
SDA
SCL
Figure 10-14 Timing Definition for Fast and Standard Mode Devices on the I
1. TCK frequency of operation must be less than 1/8 the processor rate.
TCK frequency of operation
TCK clock pulse width
TMS, TDI data set-up time
TMS, TDI data hold time
TCK low to TDO data valid
TCK low to TDO tri-state
S
(Input)
TCK
t
V
Characteristic
HD; STA
t
M
LOW
= V
IL
+ (V
IH
Figure 10-15 Test Clock Input Timing Diagram
t
HD; DAT
– V
1
IL
)/2
V
t
SU; DAT
IH
t
HIGH
Symbol
Table 10-18 JTAG Timing
t
f
t
t
t
t
56F8014 Technical Data, Rev. 9
PW
OP
DH
DS
DV
TS
t
PW
V
V
t
SU; STA
M
IL
Min
DC
50
—
—
5
5
BR
1/f
SYS_CLK/8
OP
Max
—
—
—
30
30
t
HD; STA
t
PW
V
M
MHz
Unit
ns
ns
ns
ns
ns
t
SP
t
SU; STO
See Figure
10-15
10-15
10-16
10-16
10-16
10-16
P
2
t
C Bus
BUF
JTAG Timing
S
107