M32C83T datasheet(318/527 Pages) RENESAS

318 / 527 page

Page 295

21. Intelligent I/O (Group 0, 1 Communication Function)

)

(

Figure 21.38 G0CMP0 to G0CMP3 Registers, G1CMP0 to G1CMP3 Registers, G0MSK0 to G0MSK1

Registers, G1MSK0 to G1MSK1 Registers, G0TCRC to G1TCRC Registers, and

G0RCRC to G1RCRC Registers

Group i Data Compare Register j (i=0,1; j=0 to 3)

Symbol

Address

After Reset

G0CMP0 to G0CMP3

00F016, 00F116, 00F216, 00F316

Indeterminate

G1CMP0 to G1CMP3

013016, 013116, 013216, 013316

Indeterminate

Function

Setting Range

Data to be compared

0016 to FF16

NOTES:

1. Set the GiMSK0 register to use the GiCMP0 register.

Set the GiMSK1 register to use the GiCMP1 register.

Group i Data Mask Register j (i=0,1; j=0,1)

Symbol

Address

After Reset

G0MSK0,G0MSK1

00F416, 00F516

Indeterminate

G1MSK0,G1MSK1

013416, 013516

Indeterminate

Function

Setting Range

Masked data for received data

Set bits not being compared to "1"

0016 to FF16

Group i Transmit CRC Code Register (i=0,1)

Symbol

Address

After Reset

G0TCRC, G1TCRC

00FB16-00FA16, 013B16-013A16

000016

Function

Result of the transmit CRC calculation(1,2)

b15

NOTES:

1. Calculation results are reset by setting the TE bit in the GiCR register to "0" (transmit disabled).

Default value is determined by setting the CRCV bit in the GiEMR register.

2. Transmit CRC calculation is performed with every bit of transmit data transmitted while the TCRCE

bit in the GiETC register is set to "1" (used).

Group i Receive CRC Code Register (i=0,1)

Symbol

Address

After Reset

G0RCRC, G1RCRC

00F916-00F816, 013916-013816

Indeterminate

Function

Result of the receive CRC calculation(1, 2, 3)

b15

NOTES:

1. The calculation result is reset by setting the RCRCE bit in the GiERC register to "0" (not used). If the

the ACRC bit in the GiCMPj register is set to "1" (reset), the result is reset by matching the data in

the GiCMPj register with the received data.

2. The result is reset to the default value selected by the CRCV bit in the GiEMR register before

reception starts.

3. Receive CRC calculation occurs with every bit of transmit data transmitted while the RCRCE bit in

the GiERC register is set to "1" (used).

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