Chapter 10 XGATE (S12XGATEV3)
MC9S12XE-Family Reference Manual , Rev. 1.19
368
Freescale Semiconductor
10.3.1.12 XGATE Program Counter Register (XGPC)
The XGPC register (
) provides access to the RISC core’s program counter.
Read: In debug mode if unsecured and not idle (XGCHID
≠
0x00)
Write: In debug mode if unsecured and not idle (XGCHID
≠
0x00)
10.3.1.13 XGATE Register 1 (XGR1)
The XGR1 register (
) provides access to the RISC core’s register 1.
Read: In debug mode if unsecured and not idle (XGCHID
≠
0x00)
Write: In debug mode if unsecured and not idle (XGCHID
≠
0x00)
Module Base +0x0001E
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
XGPC
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 10-14. XGATE Program Counter Register (XGPC)
Table 10-14. XGPC Field Descriptions
Field
Description
15–0
XGPC[15:0]
Program Counter
— The RISC core’s program counter
Module Base +0x00022
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
XGR1
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 10-15. XGATE Register 1 (XGR1)
Table 10-15. XGR1 Field Descriptions
Field
Description
15–0
XGR1[15:0]
XGATE Register 1
— The RISC core’s register 1
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
S12XE
products
in
208
MAPBGA
packages
