Timers - Freescale Semiconductor MPC8358E Hardware Specificftion

Timers

Figure 38 shows the PCI output AC timing conditions.
High-Impedance
13 Timers
This section describes the DC and AC electrical specifications for the timers of the MPC8360E/58E.
13.1 Timers DC Electrical Characteristics
Table 49 provides the DC electrical characteristics for the device timer pins, including TIN, TOUT,
TGATE, and RTC_CLK.
Characteristic
Output high voltage
Output low voltage
Output low voltage
Input high voltage
Input low voltage
Input current
13.2 Timers AC Timing Specifications
Table 50 provides the timer input and output AC timing specifications.
Timers inputs—minimum pulse width
Notes:
1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN. Timings are
measured at the pin.
2. Timers inputs and outputs are asynchronous to any visible clock. Timers outputs should be synchronized before use by any
external synchronous logic. Timers inputs are required to be valid for at least t
MPC8360E/MPC8358E PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 4
56
CLK
Output Delay
Output
Figure 38. PCI Output AC Timing Measurement Condition
Table 49. Timers DC Electrical Characteristics
Symbol
Table 50. Timers Input AC Timing Specifications
Characteristic
t
PCKHOV
Condition
V I = –6.0 mA
OH OH
V I = 6.0 mA
OL OL
V I = 3.2 mA
OL
OL
V —
IH
V —
IL
0 V ≤ V ≤ OV
I
IN IN DD
TIWID
t
PCKHOX
t
PCKHOZ
Min Max
2.4 —
— 0.5
— 0.4
2.0 OV + 0.3
DD
–0.3 0.8
— ±10
1
2
Symbol Typ
t 20
TIWID
ns to ensure proper operation.
Freescale Semiconductor
Unit
V
V
V
V
V
μA
Unit
ns