TCC720 Datasheet, PDF (139/143 Pages) List of Unclassifed Manufacturers – 32-bit RISC Microprocessor For Digital Media Player

TCC720
32-bit RISC Microprocessor for Digital Media Player
Dec. 16. 2002
BOOTING PROCEDURE
Preliminary Spec 0.51
14.5 Development mode
To ease the effort for starting development withTCC720, TCC720 provides development mode
in booting. In this mode, JTAG interface is enabled and set cache & protection unit of TCC720
appropriately.
The table 14.4 describes the region setting in this mode.
Table 14.4 Region Settings in Development Mode
Region #
Start
End
I Cache D Cache Buffer
Protection
0
0x00000000 0xFFFFFFFF Enabled Enabled Enabled Full Access
1
0x20000000 0x3FFFFFFF Enabled Disabled Enabled Full Access
2
0x40000000 0x4FFFFFFF Enabled Disabled Enabled Full Access
3
0x50000000 0x5FFFFFFF Enabled Disabled Enabled Full Access
4
0x60000000 0x6FFFFFFF Enabled Disabled Enabled Full Access
5
0x70000000 0x7FFFFFFF Enabled Disabled Enabled Full Access
6
0x80000000 0xFFFFFFFF Enabled Disabled Enabled Full Access
7
0x3000F000 0x3000FFFF Enabled Disabled Enabled Full Access
*) The region of higher number has higher priority than that of the lower regions. That is, region
7 has highest priority and region 0 has lowest priority.
After region setting finishes, it goes into a infinite loop toggling GPIO_A[0].
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