UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 135

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

5.4.9 Stack addressing
[Function]
[Description example]
[Illustration]
The stack area is indirectly addressed with the stack pointer (SP) contents.
This addressing method is automatically employed when the PUSH, POP, subroutine call and return instructions
are executed or the register is saved/reset upon generation of an interrupt request.
Stack addressing can be used to address the internal high-speed RAM area only.
In the case of PUSH DE (saving the DE register)
SP
SP
FEDEH
FEE0H
Operation code
CHAPTER 5 CPU ARCHITECTURE
User’s Manual U14046EJ5V0UD
FEE0H
FEDFH
FEDEH
1 0 1 1 0 1 0 1
7
Memory
D
E
0
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