参数资料
型号: XE8805AMI028LF
厂商: Semtech
文件页数: 73/156页
文件大小: 0K
描述: IC DAS 16BIT FLASH 8K MTP 64LQFP
标准包装: 160
系列: XE880x
应用: 感测机
核心处理器: Coolrisc816?
程序存储器类型: 闪存(22 kB)
控制器系列: XE8000
RAM 容量: 512 x 8
接口: UART,USRT
输入/输出数: 24
电源电压: 2.4 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
包装: 托盘
供应商设备封装: 64-LQFP(10x10)
产品目录页面: 585 (CN2011-ZH PDF)
配用: XE8000MP-ND - PROG BOARD AND PROSTART2 CARD
Semtech 2006
www.semtech.com
3-6
XE8805/05A
Sflag
-,-,-, a
a[7] := C; a[6] := C xor V; a[5] := ST full; a[4] := ST empty
Rflag reg
C, V, Z, a
a := reg << 1; ; a[0] := 0; C := reg[7]
Rflag eaddr
C, V, Z, a
a := DM(eaddr)<<1; a[0] :=0; C := DM(eaddr)[7]
Freq divn
-,-,-, -
reduces the CPU frequency (divn=nodiv, div2, div4, div8, div16)
Halt
-,-,-, -
halts the CPU
Nop
-,-,-, -
no operation
- = unchanged, u = undefined, *MSHR reg,# 1 doesn’t shift by 1
Table 3-4. Instruction short reference
The Coolrisc816 has 8 different addressing modes. These modes are described in Table 3-5. In this table, the
notation ix refers to one of the data memory index registers i0, i1, i2 or i3. Using eaddr in an instruction of Table 3-4
will access the data memory at the address DM(eaddr) and will simultaneously execute the index operation.
extended address
eaddr
accessed data memory
location
DM(eaddr)
index
operation
addr[7:0]
DM(h00&addr[7:0])
-
direct addressing
(ix)
DM(ix)
-
indexed addressing
(ix, offset[7:0])
DM(ix+offset)
-
indexed addressing with immediate offset
(ix,r3)
DM(ix+r3)
-
indexed addressing with register offset
(ix)+
DM(ix)
ix := ix+1
indexed addressing with index post-increment
(ix,offset[7:0])+
DM(ix+offset)
ix := ix+offset
indexed addressing with index post-increment by the offset
-(ix)
DM(ix-1)
ix := ix-1
indexed addressing with index pre-decrement
-(ix,offset[7:0])
DM(ix-offset)
ix := ix -offset
indexed addressing with index pre-decrement by the offset
Table 3-5. Extended address mode description
Eleven different jump conditions are implemented as shown in Table 3-6. The contents of the column CC in this
table should replace the CC notation in the instruction description of Table 3-4.
CC
condition
CS
C=1
CC
C=0
ZS
Z=1
ZC
Z=0
VS
V=1
VC
V=0
EV
(EV1 or EV0)=1
After CMP op1,op2
EQ
op1=op2
NE
op1
≠op2
GT
op1>op2
GE
op1
≥op2
LT
op1<op2
LE
op1
≤op2
Table 3-6. Jump condition description
Not
Recommended
for
New
Designs
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