ZHCSBT2G November 2012 – October 2017 66AK2H06 , 66AK2H12 , 66AK2H14
PRODUCTION DATA.
The reset controller detects the different type of resets supported on the 66AK2Hxx device and manages the distribution of those resets throughout the device. The device has the following types of resets:
Table 11-9 explains further the types of reset, the reset initiator, and the effects of each reset on the device. For more information on the effects of each reset on the PLL controllers and their clocks, see Section 11.4.8.
TYPE | INITIATOR | EFFECT(S) |
---|---|---|
Power-on reset | POR pin | Resets the entire chip including the test and emulation logic. The device configuration pins are latched only during power-on reset. |
RESETFULL pin | ||
Hard reset | RESET pin | Hard reset resets everything except for test, emulation logic, and reset isolation modules. This reset is different from power-on reset in that the PLL Controller assumes power and clocks are stable when a hard reset is asserted. The device configurations pins are not relatched.
Emulation-initiated reset is always a hard reset. By default, these initiators are configured as hard reset, but can be configured (except emulation) as a soft reset in the RSCFG Register of the PLL Controller. Contents of the DDR3 SDRAM memory can be retained during a hard reset if the SDRAM is placed in self-refresh mode. |
PLLCTL Register (RSCTRL)(1) | ||
Watchdog timers | ||
Emulation | ||
Soft reset | RESET pin | Soft reset behaves like hard reset except that PCIe MMRs (memory-mapped registers) and DDR3 EMIF MMRs contents are retained.
By default, these initiators are configured as hard reset, but can be configured as soft reset in the RSCFG Register of the PLL Controller. Contents of the DDR3 SDRAM memory can be retained during a soft reset if the SDRAM is placed in self-refresh mode. |
PLLCTL Register (RSCTRL) | ||
Watchdog timers | ||
Local reset | LRESET pin | Resets the C66x CorePac, without disturbing clock alignment or memory contents. The device configuration pins are not relatched. |
Watchdog timer time-out | ||
LPSC MMRs |