M32CSLASH86 datasheet(282/505 Pages) RENESAS

部品番号	M32C/86

部品情報	RENESAS 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

PDF	505 Pages

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メーカー	RENESAS [Renesas Technology Corp]

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Page 259

21. X/Y Conversion

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21. X/Y Conversion

The X/Y conversion rotates a 16 x 16 matrix data by 90 degrees and inverses high-order bits and low-order

bits of a 16-bit data. Figure 21.1 shows the XYC register.

The 16-bit XiR register (i=0 to 15) and 16-bit YjR register (j=0 to 15) are allocated to the same address. The

XiR register is a write-only register, while the YjR register is a read-only register. Access the XiR and YjR

registers from an even address in 16-bit units. Performance cannot be guaranteed if the XiR and YiR

registers are accessed in 8-bit units.

Function

X/Y Control Register

Bit Name

Bit

Symbol

Address

After Reset

XYC

02E016

XXXX XX002

Read Mode Set Bit

Write Mode Set Bit

Noting is assigned. When write, set to "0".

When read, its content is indeterminate.

0 : Data conversion

1 : No data conversion

0 : No bit alignment conversion

1 : Bit alignment conversion

XYC1

(b7 - b2)

XYC0

Figure 21.1 XYC Register

M32C/86 データシート(PDF) 282 Page - Renesas Technology Corp