參數(shù)資料
型號(hào): ST10F269Z2Q3
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP144
封裝: 28 X 28 MM, PLASTIC, QFP-144
文件頁數(shù): 91/160頁
文件大小: 1541K
代理商: ST10F269Z2Q3
ST10F269
36/160
6.1.1 - Features
6.1.1.1 - Enhanced Addressing Capabilities
– New addressing modes including a double indi-
rect addressing mode with pointer post-modifi-
cation.
– Parallel Data Move : this mechanism allows one
operand move during Multiply-Accumulate in-
structions without penalty.
– New tranfer instructions CoSTORE (for fast ac-
cess to the MAC SFRs) and CoMOV (for fast
memory to memory table transfer).
6.1.1.2 - Multiply-Accumulate Unit
– One-cycle execution for all MAC operations.
– 16 x 16-bit signed/unsigned parallel multiplier.
– 40-bit signed arithmetic unit with automatic sat-
uration mode.
– 40-bit accumulator.
– 8-bit left/right shifter.
– Full instruction set with multiply and multiply-ac-
cumulate, 32-bit signed arithmetic and compare
instructions.
6.1.1.3 - Program Control
– Repeat Unit : allows some MAC co-processor in-
structions to be repeated up to 8192 times. Re-
peated instructions may be interrupted.
– MAC interrupt (Class B Trap) on MAC condition
flags.
Figure 10 : MAC Unit Architecture
Note: * Shared with standard ALU.
Operand 2
Operand 1
Control Unit
Repeat Unit
ST10 CPU
Interrupt
Controller
MSW
MRW
MAH
MAL
MCW
Flags MAE
Mux
8-bit Left/Right
Shifter
Mux
Sign Extend
16 x 16
Concatenation
signed/unsigned
Multiplier
40-bit Signed Arithmetic Unit
0h
08000h
40
16
40
32
16
40
Scaler
AB
40
GPR Pointers *
IDX0 Pointer
IDX1 Pointer
QR0 GPR Offset Register
QR1 GPR Offset Register
QX0 IDX Offset Register
QX1 IDX Offset Register
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