M32C8A Datasheet, PDF (295/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
21. X/Y Conversion
When setting the XYC0 bit in the XYC register to 1 (data not converted) and reading the YjR register, the value
written to the XiR register can be read. Figure 21.4 shows a conversion table when the XYC0 bit is set to 1.
Write address
Read address
X0R register, Y0R register
X1R register, Y1R register
X2R register, Y2R register
X3R register, Y3R register
X4R register, Y4R register
X5R register, _{Y5R register}
X6R register, Y6R register
X7R register, Y7R register
X8R register, Y8R register
X9R register, Y9R register
X10R register, Y10R register
X11R register, Y11R register
X12R register, Y12R register
X13R register, Y13R register
X14R register, Y14R register
X15R register, Y15R register
b15
Bits in XiR register
Bits in YjR register
b0
i = 0 to 15
j = 0 to 15
Figure 21.4 Conversion Table when the XYC0 Bit is Set to 1
The XYC1 bit in the XYC register selects bit alignment written to the XiR register.
When the XYC1 bit is set to 0 (bit alignment not converted) and writing to the XiR register, bit alignment is written as
is. When the XYC1 bit is set to 1 (bit alignment converted) and writing to the XiR register, inverted bit alignment is
written.
Figure 21.5 shows a conversion when the XYC1 bit is set to 1.
b15
b0
Write data
b15
b0
XiR register
(i = 0 to 15)
Figure 21.5 Conversion when the XYC1 Bit is Set to 1
Rev.1.00 Jul 15, 2007 Page 278 of 352
REJ09B0385-0100