ST10F273Z4 STMicroelectronics, ST10F273Z4 Datasheet - Page 30

• Manufacturer Part Number: ST10F273Z4
• Description: 16-BIT MICROCONTROLLER WITH MAC UNIT, UP TO 832 KBYTES FLASH MEMORY AND UP TO 68 KBYTES RAM
• Manufacturer: STMicroelectronics

Specifications of ST10F273Z4

• Single Voltage Supply: 5 V ±10%

Internal Flash memory
5.4.2
Table 9.
30/188
SMOD
SPR
SER
DWPG
WPG
WMS
RW
15
Bit
SUSP
RW
14
Flash control register 0 high
The Flash Control Register 0 High (FCR0H) together with the Flash Control Register 0 Low
(FCR0L) is used to enable and to monitor all the write operations on the IFlash. The user
has no access in write mode to the Test-Flash (B0TF). Besides, Test-Flash block is seen by
the user in Bootstrap mode only.
FCR0H (0x0E 0002)
Flash control register 0 high
This must be set before every Write Operation except for writing in the Flash Non Volatile
Protection Registers, SMOD is automatically reset at the end of the Write Operation.
Set protection
This bit must be set to select the Set Protection operation. The Set Protection operation allows to
program 0s in place of 1s in the Flash Non Volatile Protection Registers. The Flash Address in
which to program must be written in the FARH/L registers, while the Flash Data to be programmed
must be written in the FDR0H/L before starting the execution by setting bit WMS. A sequence error
is flagged by bit SEQER of FER if the address written in FARH/L is not in the range 0x0EDFB0-
0x0EDFBF. SPR bit is automatically reset at the end of the Set Protection operation.
Sector erase
This bit must be set to select the Sector Erase operation in the Flash modules. The Sector Erase
operation allows to erase all the Flash locations to value 0xFF. From 1 to all the sectors of the
same bank (excluded Test-Flash for Bank B0) can be selected to be erased through bits BxFy of
FCR1H/L registers before starting the execution by setting bit WMS. It is not necessary to pre-
program the sectors to 0x00, because this is done automatically. SER bit is automatically reset at
the end of the Sector Erase operation.
Double word program
This bit must be set to select the Double Word (64 bits) Program operation in the Flash module.
The Double Word Program operation allows to program 0s in place of 1s. The Flash Address in
which to program (aligned with even words) must be written in the FARH/L registers, while the 2
Flash Data to be programmed must be written in the FDR0H/L registers (even word) and FDR1H/L
registers (odd word) before starting the execution by setting bit WMS. DWPG bit is automatically
reset at the end of the Double Word Program operation.
Word program
This bit must be set to select the Word (32 bits) Program operation in the Flash module. The Word
Program operation allows to program 0s in place of 1s. The Flash Address to be programmed must
be written in the FARH/L registers, while the Flash Data to be programmed must be written in the
FDR0H/L registers before starting the execution by setting bit WMS. WPG bit is automatically reset
at the end of the Word Program operation.
WPG
RW
13
DWPG
RW
12
SER
RW
11
10
reserved
9
SPR
RW
8
FCR
Function
SMOD
RW
7
6
5
4
reserved
3
Reset Value: 0000h
2
ST10F273Z4
1
0