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N2HET Control Registers

23.4.31 Loop Back Pair Select Register (HETLBPSEL)

Refer to Section 23.2.5.7 for a description of loopback test functions.

N2HET1: offset = FFF7 B88Ch; N2HET2: offset = FFF7 B98Ch

Figure 23-65. Loop Back Pair Select Register (HETLBPSEL)

31 30 29 28 27 26 25 24

LBPTYPE31/30 LBPTYPE29/28 LBPTYPE27/26 LBPTYPE25/24 LBPTYPE23/22 LBPTYPE21/20 LBPTYPE19/18 LBPTYPE17/16

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

23 22 21 20 19 18 17 16

LBPTYPE15/14 LBPTYPE13/12 LBPTYPE11/10 LBPTYPE9/8 LBPTYPE7/6 LBPTYPE5/4 LBPTYPE3/2 LBPTYPE1/0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

15 14 13 12 11 10 9 8

LBPSEL 31/30 LBPSEL 29/28 LBPSEL 27/26 LBPSEL 25/24 LBPSEL 23/22 LBPSEL 21/20 LBPSEL 19/18 LBPSEL 17/16

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

7 6 5 4 3 2 1 0

LBPSEL 15/14 LBPSEL 13/12 LBPSEL 11/10 LBPSEL 9/8 LBPSEL 7/6 LBPSEL 5/4 LBPSEL 3/2 LBPSEL 1/0

R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 23-46. Loop Back Pair Select Register (HETLBPSEL) Field Descriptions

Bit Field Value Description

31-16 LBPTYPE Loop Back Pair Type Select Bits

n+1 / n

These bits are valid only when Loopback mode is enabled (HETLBPDIR[19:16] = "1010").

0 Digital loopback is selected for HR structures on pins HET[n+1] and HET[n].

1 Analog loopback is selected for HR structures on pins HET[n+1] and HET[n].

15-0 LBPSEL Loop Back Pair Select Bits

n+1 / n

These bits are valid only when Loopback mode is enabled (HETLBPDIR[19:16] = "Ah").

If bit x is set, the HR structures on pins HET[n+1] and HET[n] are connected in a loop back mode.

The direction is given by LBPDIR n+1/n and type is selected by LBPTYPE n+1/n.

The pin which is not driven by the N2HET pin actions can still be used as normal GIO pin.

991

SPNU562–May 2014 High-End Timer (N2HET) Module

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