EM78P153S Ver la hoja de datos (PDF) - ELAN Microelectronics
Número de pieza
componentes Descripción
Fabricante
EM78P153S Datasheet PDF : 53 Pages
| |||
4. FUNCTION DESCRIPTION
OSCO
OSCI
/RESET
Oscillator/Timing
Control
WDT timer TCC /INT
Prescaler
ROM
EM78P153S
OTP ROM
R2
Stack
Built-in
OSC
RAM
Interrupt
Controller
R4
R1(TCC)
Instruction
Register
Instruction
Decoder
ALU
R3
ACC
DATA & CONTROL BUS
P60
P61
IOC6
R6
I/O
PORT 6
P62/TCC
P63//REST
P64/OSCO
P65/OSCI
IOC5
R6
I/O
PORT 5
P50
P51
P52
P53
P66
P67
Fig. 2 Functional block diagram
4.1 Operational Registers
1. R0 (Indirect Addressing Register)
R0 is not a physically implemented register. Its major function is to be an indirect addressing pointer.
Any instruction using R0 as a pointer, actually accesses data pointed by the RAM Select Register
(R4).
2. R1 (Time Clock /Counter)
• Increased by an external signal edge, which is defined by TE bit (CONT-4) through the TCC pin, or
by the instruction cycle clock.
• Writable and readable as any other registers.
• Defined by resetting PAB (CONT-3).
• The prescaler is assigned to TCC if the PAB bit (CONT-3) is reset.
• The contents of the prescaler counter is cleared only when a value is written to TCC register.
This specification is subject to change without prior notice.
8
4. 1.2004 (V1.4)
Share Link: 