CHAPTER 1 INTRODUCTION
User’s Manual U13850EJ6V0UD
53
1.4 V850/SB2 (A Versions)
1.4.1 Features (V850/SB2 (A versions))
{
Number of instructions: 74
{
Minimum instruction execution time
79 ns (operating at 12.58 MHz, external power supply 5 V, regulator output 3.0 V)
{
General-purpose registers
32 bits
×
32 registers
{
Instruction set
Signed multiplication (16
×
16
→
32): 158 ns (operating at 12.58 MHz)
(able to execute instructions in parallel continuously without creating any register
hazards).
Saturation operations (overflow and underflow detection functions are included)
32-bit shift instruction: 1 clock
Bit manipulation instructions
Load/store instructions with long/short format
{
Memory space
16 MB of linear address space (for programs and data)
External expandability: expandable to 4 MB
Memory block allocation function: 2 MB per block
Programmable wait function
Idle state insertion function
{
External bus interface
16-bit data bus (address/data multiplex)
Address bus: separate output enabled
3 V to 5 V interface enabled
Bus hold function
External wait function
{
Internal memory
µ
PD703034A, 703034AY (mask ROM: 128 KB/RAM: 12 KB)
µ
PD703035A, 703035AY (mask ROM: 256 KB/RAM: 16 KB)
µ
PD703037A, 703037AY (mask ROM: 512 KB/RAM: 24 KB)
µ
PD70F3035A, 70F3035AY (flash memory: 256 KB/RAM: 16 KB)
µ
PD70F3037A, 70F3037AY (flash memory: 512 KB/RAM: 24 KB)
{
Interrupts and exceptions
Non-maskable interrupts: 2 sources
Maskable interrupts:
39 sources (
µ
PD703034A, 703035A, 703037A,
70F3035A, 70F3037A)
40 sources (
µ
PD703034AY, 703035AY, 703037AY,
70F3035AY, 70F3037AY)
Software exceptions: 32 sources
Exception trap: 1 source
{
I/O lines
Total: 83 (12 input ports and 71 I/O ports)
3 V to 5 V interface enabled
{
Timer/counter
16-bit timer: 2 channels (PWM output)
8-bit timer: 6 channels (four PWM outputs, cascade connection enabled)
{
Watch timer
When operating under subclock or main clock: 1 channel
Operation using the subclock or main clock is also possible in the IDLE mode.
{
Watchdog timer
1 channel
{
Serial interface (SIO)
Asynchronous serial interface (UART)
Clocked serial interface (CSI)
Содержание V850/SB1
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