D13003TF16V Renesas Electronics America, D13003TF16V Datasheet - Page 92

• Manufacturer Part Number: D13003TF16V
• Description: IC H8/3003 ROMLESS 112QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of D13003TF16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 50
• Program Memory Type: ROMless
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

4.6 Notes on Stack Usage
When accessing word data or longword data, the H8/3003 regards the lowest address bit as 0. The
stack should always be accessed by word access or longword access, 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 4-6 shows an example of what
happens when the SP value is odd.
SP
Legend
CCR:
PC:
R1L:
SP:
Note: The diagram illustrates modes 3 and 4.
PUSH.W Rn (or MOV.W Rn, @–SP)
PUSH.L ERn (or MOV.L ERn, @–SP)
POP.W Rn
POP.L ERn
Condition code register
Program counter
General register R1L
Stack pointer
SP set to H'FFFEFF
TRAPA instruction executed
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
Figure 4-6 Operation when SP Value is Odd
SP
Data saved above SP
CCR
PC
72
MOV. B RIL, @-ER7
SP
CCR contents lost
RIL
PC
H'FFFEFA
H'FFFEFB
H'FFFEFC
H'FFFEFD
H'FFFEFF