CY7C955-NC Cypress Semiconductor Corp, CY7C955-NC Datasheet - Page 56

• Manufacturer Part Number: CY7C955-NC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C955-NC

• Lead Free Status / RoHS Status: Not Compliant

REG
7
6
5
4
3
2
1
0
TCELL[18:0]
Reg 64H, Reg 65H, and Reg 66H will load the number of cells transmitted from an internal counter approximately 200 ns
after a write operation is done to Reg 64H, Reg 65H, Reg 66H, or Reg 00H. At that time (200 ns after the write operation),
this register is updated and the internal transmit cell counter is reset to zero or one (depending on whether a cell transmission
has occurred while the write occurs) to begin another round of accumulation. Reading Reg 64H, Reg 65H, and Reg 66H after
the write yields the number of cell transmitted since the counter was last reset, if overflow has not occurred. TCELL[18:0] should
be polled once a second to prevent the register from being saturated.
REG
7
6
5
4
3
2
1
0
TCELL[18:0]
Reg 64H, Reg 65H, and Reg 66H will load the number of cells transmitted from an internal counter approximately 200 ns
after a write operation is done to Reg 64H, Reg 65H, Reg 66H, or Reg 00H. At that time (200 ns after the write operation),
this register is updated and the internal transmit cell counter is reset to zero or one (depending on whether a cell transmission
has occurred while the write occurs) to begin another round of accumulation. Reading Reg 64H, Reg 65H, and Reg 66H after
the write yields the number of cell transmitted since the counter was last reset, if overflow has not occurred. TCELL[18:0] should
be polled once a second to prevent the register from being saturated.
BIT POSITION
BIT POSITION
64H
65H
Transmit ATM Cell Processor Transmit Cell Counter Register
TCELL[7]
TCELL[6]
TCELL[5]
TCELL[4]
TCELL[3]
TCELL[2]
TCELL[1]
TCELL[0]
Transmit ATM Cell Processor Transmit Cell Counter Register
TCELL[15]
TCELL[14]
TCELL[13]
TCELL[12]
TCELL[11]
TCELL[10]
TCELL[9]
TCELL[8]
PRELIMINARY
NAME
NAME
56
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
READ/WRITE
READ/WRITE
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
CY7C955
DEFAULT
DEFAULT