GCIXP1200GB Intel, GCIXP1200GB Datasheet - Page 120

• Manufacturer Part Number: GCIXP1200GB
• Description: IC MPU NETWORK 200MHZ 432-BGA
• Manufacturer: Intel

Specifications of GCIXP1200GB

• Rohs Status: RoHS non-compliant
• Processor Type: Network
• Features: 32-bit StrongARM RISC Core
• Speed: 200MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 432-BGA
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant
• Other names: 839428

Intel
7.3.7.5
7.3.8
7.3.8.1
120
Figure 60. IX Bus Ownership Passing
Figure 61. SRAM SCLK Signal AC Parameter Measurements
®
IXP1200 Network Processor
TK_IN/TK_OUT
The following timing diagrams show the transition from one IX Bus owner to another. Note that
prior to giving up the bus, the PORTCTL[4:0] signals are driven high which will not select any
ports. Then the signal is tri-stated and must be held up with pullup resistors.
SRAM Interface
SRAM SCLK Signal AC Parameter Measurements
Vt1 = 0.5*VDDX
Vt2 = 0.4*VDDX
Vt3 = 0.3*VDDX
A = Driven by the Intel
B = Driven high for one cycle by the IXP1200 Network Processor #2 (no port is selected),
C = Weak external pull-up resistors are recommended on PORTCTL#[7:0], FPS[2:0] and TxASIS.
Notes:
if the transfer is a Rx.
then tristated.
(is TK_IN to #2 )
PORTCTL#[7:0]
TK_OUT #1
TK_OUT #2
FDAT[63:0]
FPS[2:0]
TxASIS
FCLK
V
t3
V
®
t2
V
Device 1 Releases Token
IXP1200 Network Processor #1 if the transfer is a Tx, not driven
t1
1
T
r
2
T
high
Data
3
T
T
cyc
f
4
B
T
A
low
5
C
Device 2 Now Has Token
6
7
8
9
Datasheet
A6992-01
A7005-01