Device specific information

ST7 Flash Programming

4/10

1.3

Implemented ICC features

Table 3 defines the implemented ICC features and their main characteristics for each ST7

device. The data mentioned in this table is described in detail in the ICC protocol reference

manual.

Description of legends for Table 3

ICC monitor: Three different ICC monitors can be implemented: basic (for ST7 with

HDFlash and small XFlash), medium (for ST7 ROM) and advanced (for ST7 XFlash with

debug module). Refer to the ICC protocol reference manual for more details.

ICC mode entry: Different methods exists for entering ICC mode. Refer to the ICC protocol

reference manual for more details.

IAP:IAP is not available on 4K HDFlash versions.

ICD: ICD can be managed with or without a debug module, refer to the ICC protocol

reference manual for more details

DM: The Debug Module (DM) is an ST7 hardware peripheral able to manage instruction

stepping, complex breakpoints and abort for ICD development tools. The ST72F325,

ST7FSuperlite, ST7FLite2 and ST7FHUB Debug Modules do not feature the WP bit

capability and the register protection when MTR=0. Refer to the ICC protocol reference

manual for more details.

Ext clock: If this number of pulses is generated, the ST7 does not take into account the

option byte configuration stored in the Flash memory, and an external clock has to be

provided. In this case, the microcontroller configuration corresponds to the factory default

option byte values, see product datasheet for more details. Note that in this mode, reserved

Flash locations (which may contain internal oscillator calibration data for example) are not

write protected, and could be corrupted if you program the device using a wrong address.

Caution:

To know on which pin the external clock must be provided please refer to the section related

to the ICC interface in the product datasheet.

Appli clock: If this number of pulses is generated, the ST7 takes into account the option

byte configuration (except the watchdog which is always software in this condition). In this

case, be sure that the selected clock source is available in the application (see product

datasheet for more details).

Note that in this mode, reserved Flash locations are write protected, so this mode is safer

than external clock mode.