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HTU Control Registers

24.4.6 Control Packet (CP) Busy Register 3 (HTU BUSY3)

Figure 24-19. Control Packet (CP) Busy Register 3 (HTU BUSY3) [offset = 14h]

31 25 24 23 17 16

Reserved BUSY6A Reserved BUSY6B

R-0 R/WPC-0 R-0 R/WPC-0

15 9 8 7 1 0

Reserved BUSY7A Reserved BUSY7B

R-0 R/WPC-0 R-0 R/WPC-0

LEGEND: R/W = Read/Write; R = Read only; WPC = Write 1 in privilege mode only to clear the bit; -n = value after reset

Table 24-18. Control Packet (CP) Busy Register 3 (HTU BUSY3) Field Descriptions

Bit Field Value Description

31-25 Reserved 0 Read returns 0. Writes have no effect.

24 BUSY6A Busy Flag for CP A of DCP 6

23-17 Reserved 0 Read returns 0. Writes have no effect.

16 BUSY6B Busy Flag for CP B of DCP 6

15-9 Reserved 0 Read returns 0. Writes have no effect.

8 BUSY7A Busy Flag for CP A of DCP 7

7-1 Reserved 0 Read returns 0. Writes have no effect.

0 BUSY7B Busy Flag for CP B of DCP 7

24.4.7 Active Control Packet and Error Register (HTU ACPE)

Figure 24-20. Active Control Packet and Error Register (HTU ACPE) [offset = 18h]

31 30 29 28 24 23 20 19 16

ERRF Reserved ERRETC Reserved ERRCPN

R/WP R-0 R-0 R-0 R-0

C-0

15 14 13 12 8 7 4 3 0

TIPF BUSBUSY Rsvd CETCOUNT Reserved NACP

R-0 R-0 R-0 R-0 R-0 R-0

LEGEND: R/W = Read/Write; R = Read only; WPC = Write 1 in privilege mode only to clear the bit; -n = value after reset

Table 24-19. Active Control Packet and Error Register (HTU ACPE) Field Descriptions

Bit Field Value Description

31 ERRF Error Flag

0 No error occurred

1 This bit is set when one of the conditions listed at ERRETC is fulfilled and ERRETC and ERRCPN are

captured. Once ERRF is set, it is cleared when reading the upper 16-bit word of the ACPE register or

the complete 32-bit register. It is also cleared when writing a one to ERRF. ERRF can be used to

indicate if ERRETC and ERRCPN contain new unread data.

30-29 Reserved 0 Read returns 0. Writes have no effect.

1087

SPNU562–May 2014 High-End Timer Transfer Unit (HTU) Module

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