PSD835G2 datasheet(21/102 Pages) STMICROELECTRONICS

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PSD835G2

Table 12. Enable-Out Registers – Ports A, B, C, F

Note: Bit Definitions (Read only registers):

Port pin 0 = Port pin is in tri-state driver (default).

Port pin 1 = Port pin is enabled.

Table 13. Input Macrocells – Ports A, B, C

Note: Bit Definitions (Read only registers):

Read Input Macrocell (IMC7-IMC0) status on Ports A, B and C.

Table 14. Output Macrocells A Register

Note: Bit Definitions:

Write Register: Load MCellA7-MCellA0 with '0' or '1.'

Read Register: Read MCellA7-MCellA0 output status.

Table 15. Output Macrocells B Register

Note: Bit Definitions:

Write Register: Load MCellB7-MCellB0 with '0' or '1.'

Read Register: Read MCellB7-MCellB0 output status.

Table 16. Mask Macrocells A Register

Note: Bit Definitions:

McellA_Prot 0 = Allow MCellA flip-flop to be loaded by MCU (default).

McellA_Prot 1 = Prevent MCellA flip-flop from being loaded by MCU.

Table 17. Mask Macrocells B Register

Note: Bit Definitions:

McellB_Prot 0 = Allow MCellB flip-flop to be loaded by MCU (default).

McellB_Prot 1 = Prevent MCellB flip-flop from being loaded by MCU.

Table 18. Flash Memory Protection Register

Note: Bit Definitions (Read only register):

Sec_Prot 1 = Primary Flash memory Sector is write protected.

Sec_Prot 0 = Primary Flash memory Sector is not write protected.

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

Port pin 7

Port pin 6

Port pin 5

Port pin 4

Port pin 3

Port pin 2

Port pin 1

Port pin 0

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

IMcell 7

IMcell 6

IMcell 5

IMcell 4

IMcell 3

IMcell 2

IMcell 1

IMcell 0

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

Mcella 7

Mcella 6

Mcella 5

Mcella 4

Mcella 3

Mcella 2

Mcella 1

Mcella 0

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

Mcellb 7

Mcellb 6

Mcellb 5

Mcellb 4

Mcellb 3

Mcellb 2

Mcellb 1

Mcellb 0

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

Mcella 7

Mcella 6

Mcella 5

Mcella 4

Mcella 3

Mcella 2

Mcella 1

Mcella 0

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

Mcellb 7

Mcellb 6

Mcellb 5

Mcellb 4

Mcellb 3

Mcellb 2

Mcellb 1

Mcellb 0

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1

Bit 0

Sec7_Prot

Sec6_Prot

Sec5_Prot

Sec4_Prot

Sec3_Prot

Sec2_Prot

Sec1_Prot

Sec0_Prot

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