NEC UPD98413 User Manual page 273

(107) Transmit counter mode register (MDCNTT)
The MDCNTT register sets the modes related to operation of the performance monitoring counter.
Register
Name
Port0:
MDCNTT 02C0 H
31 30 29 28
15 14 13 12
Bit Field
D31-D1 Reserved Set to 0.
D0 VPCTM Selects the number of the valid packets or bytes counted by transmit valid packet
counter.
(108) Transmit counter sampling register (CSMPT)
This register specifies a command that saves the counter value of the performance monitoring counter to the
corresponding load register.
Register
Name
Port0:
CSMPT 02C4 H
31 30 29 28
15 14 13 12
Bit Field
D31-D3 Reserved Set to 0.
D2 FUPCT 1: Loads the transmit FIFO underflow packet counter.
0: Indicates completion of loading.
D1 APCT 1: Loads the transmit abort packet counter. 0: Indicates completion of loading.
D0 VPCT ATM mode:
1: Loads the valid transmit cell counter. 0: Indicates completion of loading.
POS mode:
1: Loads the valid transmit packet counter. 0: Indicates completion of loading.
CHAPTER 5 REGISTERS
Address
Port1: Port2: Port3:
06C0 H 0AC0 H 0EC0 H
27 26 25 24
Reserved
11 10 9 8
Reserved
1: Number of bytes 0: Number of packets
Address
Port1: Port2: Port3:
06C4 H 0AC4 H 0EC4 H
27 26 25 24
Reserved
11 10 9 8
Reserved
PRELIMINARY
Access Default
R/W 00000000 H
23 22 21 20
7 6 5 4
Function
Access Default
R/W 00000000 H
23 22 21 20
7 6 5 4
Function
NEC confidential and Proprietary
19 18 17 16
3 2 1 0
VPCTM
Default
0
0
19 18 17 16
3 2 1 0
FUPCT APCT VPCT
Default
0
0
0
0
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