r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1059

Manufacturer Part Number

r8a77850anbg

Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family

Manufacturer

Renesas Electronics Corporation.

Manufacturer

BOSTOCK HK LIMITED

Part Number:

r8a77850anbgV

Manufacturer:

Renesas Electronics America

In the GDTA, there are four types of interrupt sources. There are three interrupt flags for CL

processing end, MC processing end, and CL/MC errors, used to identify interrupt sources. The

interrupt enable bit allows generation of interrupt requests.

CL errors and MC errors use a common GAERI interrupt.

Table 20.10 GDTA Interrupt Request

The GDTA performs data alignment conversion of input data, output data, and RAM 0/1 data

using an endian signal (pin MD8) or using GDTA internal registers.

Table 20.11 shows the correspondence between data alignment conversion patterns and the

settings of DRCL_CTL, DWCL_CTL, DRMC_CTL, DWMC_CTL, DCP_CTL, and DID_CTL.

Table 20.11 GDTA Data Alignment Conversion

Interrupt Source

CL_END interrupt

MC_END interrupt

CL_ERR interrupt

MC_ERR interrupt

Interrupt Processing

Data Alignment

For the data alignment pattern numbers, refer to figure 20.8.

Interrupt Flag

CL_ERR or MC_ERR

Little (MD8)

Data Alignment Conversion Pattern Remarks

20. Graphics Data Translation Accelerator (GDTA)

Rev.1.00 Jan. 10, 2008 Page 1029 of 1658

CL processing ended

MC processing ended

CL error occurred

MC error occurred

REJ09B0261-0100