YLCDRSK2378 Renesas Electronics America, YLCDRSK2378 Datasheet - Page 169

Manufacturer Part Number

KIT DEV EVAL H8S/2378 LCD

Manufacturer

Renesas Electronics America

Main Purpose

Displays, LCD Controller

Yes, MCU, 16-Bit

Utilized Ic / Part

Primary Attributes

5.7" QVGA, Touch Screen

Secondary Attributes

Source Code on CD, Debugging Requires Emulator Cable E10A USB/JTAG

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

When accessing word data or longword data, this LSI assumes that the lowest address bit is 0. The

stack should always be accessed by word transfer instruction or longword transfer instruction, and

the value of the stack pointer (SP, ER7) should always be kept even. Use the following

instructions to save registers:

Use the following instructions to restore registers:

Setting SP to an odd value may lead to a malfunction. Figure 4.4 shows an example of operation

when the SP value is odd.

Note: This diagram illustrates an example in which the interrupt control mode is 0, in advanced mode.

SP set to H'FFFEFF

Condition code register

Program counter

General register R1L

Stack pointer

TRAP instruction executed

Figure 4.4 Operation when SP Value Is Odd

(or MOV.W Rn, @-SP)

(or MOV.L ERn, @-SP)

(or MOV.W @SP+, Rn)

(or MOV.L @SP+, ERn)

Data saved above SP

MOV.B R1L, @-ER7

Rev.7.00 Mar. 18, 2009 page 101 of 1136

Contents of CCR lost

Section 4 Exception Handling

REJ09B0109-0700