Figure 4-6 Address Attribute Registers (Aar0Ðaar3); Jtag Boundary Scan Register (Bsr) - Motorola DSP56309 User Manual

Core Configuration

JTAG Boundary Scan Register (BSR)

11 10 9 8
BNC2 BNC1 BNC0
BNC3
23 22 21 20
BAC11 BAC10 BAC9 BAC8
- Reserved Bit
Figure 4-6 Address Attribute Registers (AAR0ÐAAR3)
4.10 JTAG BOUNDARY SCAN REGISTER (BSR)
The BSR in the DSP56309 JTAG implementation contains bits for all device signal and
clock pins and associated control signals. All DSP56309 bidirectional pins have a
corresponding register bit in the BSR for pin data and are controlled by an associated
control bit in the BSR. The BSR is documented in Section 11.5ÑDSP56309 Boundary
Scan Register on page 11-13. The JTAG code is listed in Appendix CÑDSP56309 BSDL
Listing.
4-20
7 6 5 4
BPAC BYEN BXEN
19 18 17 16
BAC7 BAC6 BAC5 BAC4
(X:$FFFFF9Ð$FFFFF6)
DSP56309UM/D
3 2 1 0
BPEN BAAP BAT1 BAT0
15 14 13 12
BAC3 BAC2
BAC1
BAC0
External access type
AA pin polarity
Program space enable
X data space enable
Y data space enable
Reserved
Packing enable
Number of address bit to
compare
Address to compare
MOTOROLA