Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 3 CPU FUNCTION
R01UH0042EJ0500 Rev.5.00 Page 72 of 1513
Aug 12, 2011
(d) Data-only RAM (8 KB)
A data-only RAM of 8 KB is allocated to addresses 00280000H to 00281FFFH in the V850ES/JG3-H and
V850ES/JH3-H.
Figure 3-10. Data-Only RAM Area (8 KB)
Logical address space
00282000H
00281FFFH
00280000H
0027FFFFH
Access-prohibited
area
Data-only RAM
(8 KB)
Access-prohibited
area
Caution If using the data-only RAM area, the following two register setting are needed.
• Select the clock that be possible to supply the data-only RAM in the USB clock select register
(UCKSEL) (refer to 21.6.1(1))
• Set the data-only RAM operation to be enable in the USB function select register (UHCKMSK)
(refer to 21.6.1(3)) (UHCKMSK.UHMSK bit = 0)