A80960CF33 Intel, A80960CF33 Datasheet - Page 41

• Manufacturer Part Number: A80960CF33
• Description: IC MPU I960CF 33MHZ 168-PGA
• Manufacturer: Intel

Specifications of A80960CF33

• Processor Type: i960
• Features: CF suffix, 32-Bit with DMA, 4K Cache
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 168-PGA
• Family Name: 80960
• Device Core Size: 32b
• Frequency (max): 33MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: 0C to 100C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 168
• Package Type: CPGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 803084

80960-40, -33, -25
Figure 19. I
vs. Frequency and Temperature—80960CF-40
CC
1100
T
= 1000°
C
I
- I
under test conditions
CC
CC
T
= 85° C
C
0
f
(MHz)
40
0
F_CX020A
PCLK
5.0
Reset, Backoff and Hold Acknowledge
Table 20
lists the condition of each processor output pin while RESET is asserted (low).
Table 21
lists the condition of each processor output pin while HOLDA is asserted (high).
In
Table
21, with regard to bus output pin state only, the Hold Acknowledge state takes precedence
over the reset state. Although asserting the RESET pin internally resets the processor, the
processor’s bus output pins do not enter the reset state when Hold Acknowledge has been granted
to a previous HOLD request (HOLDA is active). Furthermore, the processor grants new HOLD
requests and enters the Hold Acknowledge state even while in reset.
For example, when HOLD is asserted while HOLDA is inactive and the processor is in the reset
state, the processor’s bus pins enter the Hold Acknowledge state and HOLDA is granted. The
processor is not able to perform memory accesses until the HOLD request is removed, even when
the RESET pin is brought high. This operation is provided to simplify boot-up synchronization
among multiple processors sharing the same bus.
Datasheet
41