参数资料
型号: MAX16046ETN+
厂商: Maxim Integrated Products
文件页数: 55/70页
文件大小: 0K
描述: IC EE-PROG SYS MGR 12CH 56-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 37
类型: 系统管理器
监视电压数目: 12
输出: 开路漏极,推挽式
复位: 低有效
复位超时: 可调节/可选择
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 56-WFQFN 裸露焊盘
供应商设备封装: 56-TQFN-EP(8x8)
包装: 管件
MAX16046/MAX16048
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
Test Access Port (TAP)
Controller State Machine
The TAP controller is a finite state machine that
responds to the logic level at TMS on the rising edge of
TCK. See Figure 14 for a diagram of the finite state
machine. The possible states are described below:
Test-Logic-Reset: At power-up, the TAP controller is in
the test-logic-reset state. The instruction register con-
tains the IDCODE instruction. All system logic of the
device operates normally. This state can be reached
from any state by driving TMS high for five clock cycles.
Run-Test/Idle: The run-test/idle state is used between
scan operations or during specific tests. The instruction
register and test data registers remain idle.
Select-DR-Scan: All test data registers retain their pre-
vious state. With TMS low, a rising edge of TCK moves
the controller into the capture-DR state and initiates a
scan sequence. TMS high during a rising edge on TCK
moves the controller to the select-IR-scan state.
Capture-DR: Data can be parallel-loaded into the test
data registers selected by the current instruction. If the
instruction does not call for a parallel load or the select-
ed test data register does not allow parallel loads, the
test data register remains at its current value. On the
rising edge of TCK, the controller goes to the shift-DR
state if TMS is low or it goes to the exit1-DR state if TMS
is high.
1
TEST-LOGIC-RESET
0
0
RUN-TEST/IDLE
1
SELECT-DR-SCAN
1
SELECT-IR-SCAN
1
0
0
1
CAPTURE-DR
0
1
CAPTURE-IR
0
SHIFT-DR
1
EXIT1-DR
0
PAUSE-DR
1
0
1
0
SHIFT-IR
1
EXIT1-IR
0
PAUSE-IR
1
0
1
0
0
1
EXIT2-DR
1
UPDATE-DR
0
0
1
EXIT2-IR
1
UPDATE-IR
0
Figure 14. TAP Controller State Diagram
Maxim Integrated
55
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