STMicroelectronics SPC572L series Reference Manual page 896

GTM Development Interface (GTMDI)
Table 466. GTMDI_ATOM_WPC1 field descriptions(Continued)
Field
ATOM sub-module Source Selection 2. Selects which ATOM module is the source for watchpoint
generation.
0000 ATOM0
0001 ATOM1
0010 ATOM2
0011 Reserved
0100 Reserved
0101 Reserved
11–8
0110 Reserved
SSEL2 0111 Reserved
1000 Reserved
1001 Reserved
1010 Reserved
1011 Reserved
1100 Reserved
1101 Reserved
1110 Reserved
1111 Reserved
Halt Enable 2. The HEN2 Halt Enable 2 bit controls if the ATOM selected channel is enabled to
HALT the GTM module. If this bit is set and an event occurs on the ATOM selected channel, a Halt
7
signal is generated to the GTM which enters Halt state.
HEN2
0 Disables Halt GTM
1 Enables Halt GTM
Watchpoint Message Control 2. The WMC2 Watchpoint Message Control 2 bit controls the
watchpoint message sent through the Message Data bus. If this bit is set it enables valid transitions
on the selected ATOM Channel output to generate a watchpoint message. This bit is written by the
6
JTAG interface but can also be controlled at SoC level with dedicated Start/Stop signals inputs to
WMC2
GTMDI.
0 Watchpoint Messages disabled
1 Watchpoint Messages enabled
ATOM channel selection 2. The CHSEL2[2:0] field selects a channel within the TOM selected sub-
module to generate watchpoints.
000 ATOM CH0
001 ATOM CH1
2–0
010 ATOM CH2
CHSEL2 011 ATOM CH3
100 ATOM CH4
101 ATOM CH5
110 ATOM CH6
111 ATOM CH7
42.5.1.9 ATOM watchpoint control 2 register (GTMDI_ATOM_WPC2)
The GTMDI_ATOM_WPC2 register shown in
issued by ATOM channels. These triggers are used for GTM to enter Halt state, generate
watchpoint messages and control logic external to GTMDI, such as in the SPU interface.
896/2058
Description
Figure 413
DocID027809 Rev 4
controls the Watchpoint Triggers
RM0400