SH7713 datasheet(692/904 Pages) RENESAS

692 / 904 page

Section 18 Ethernet Controller (EtherC)

Rev.1.50 Aug. 30, 2006 Page 652 of 860

REJ09B0288-0150

18.3.17

Too-Long Frame Receive Counter Register (TLFRCR)

TLFRCR is a 32-bit counter that indicates the number of frames received with a length exceeding

the value specified by the receive frame length register (RFLR). When the value in this register

reaches H'FFFFFFFF, the count is halted. TLFRCR is not incremented when a frame containing

residual bits is received. In this case, the reception of the frame is indicated in the residual-bit

frame counter register (RFCR). The counter value is cleared to 0 by a write to this register with

any value.

Bit

Bit Name

Initial

Value

R/W

Description

31 to 0 TLFC31 to

TLFC0

All 0

R/W

Too-Long Frame Receive Count

These bits indicate the count of frames received with a

length exceeding the value in RFLR.

18.3.18

Residual-Bit Frame Receive Counter Register (RFCR)

RFCR is a 32-bit counter that indicates the number of frames received containing residual bits

(less than an 8-bit unit). When the value in this register reaches H'FFFFFFFF, the count is halted.

The counter value is cleared to 0 by a write to this register with any value.

Bit

Bit Name

Initial

Value

R/W

Description

31 to 0 RFC31 to

RFC0

All 0

R/W

Residual-Bit Frame Receive Count

These bits indicate the count of frames received

containing residual bits.

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