参数资料
型号: KIT33989DWEVB
厂商: Freescale Semiconductor
文件页数: 24/72页
文件大小: 0K
描述: KIT EVAL 33989DW HS SBC
标准包装: 1
主要目的: 接口,CAN 控制器
嵌入式: 是,MCU,8 位
已用 IC / 零件: MC33989
主要属性: CAN 2.0 系统基础芯片(SBC),SPI 接口,2 低压降稳压器
次要属性: 故障检测,睡眠和待机模式
已供物品: 板,CD
相关产品: MC33989DWR2CT-ND - IC SYSTEM BASE W/CAN 28-SOIC
MC33989DWR2TR-ND - IC SYSTEM BASE W/CAN 28-SOIC
MC33989DW-ND - IC SYSTEM BASE W/CAN 28-SOIC
Analog Integrated Circuit Device Data
30
Freescale Semiconductor
33989
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Figure 16. Simplified State Machine in Debug Modes
LOGIC COMMANDS AND REGISTERS
SPI INTERFACE AND REGISTER DESCRIPTION
Table 7 illustrates a register, an 8-bit SPI. The first three bits are used to identify the internal SBC register address. Bit four is
a read/write bit. The last four bits are Data Send from MCU to SBC, or read back from SBC to MCU.
There is no significance during write operation state of MISO.
During read operation only the final four bits of MISO have a meaning (content of the accessed register).
The following tables describe the SPI register list, and register bit meaning.
Registers reset value is also described along with the reset condition. Reset condition is the condition causing the bit to be set
at the reset value.
Read operation: R/W Bit = 0
Write operation: R/W Bit = 1
Possible reset conditions include:
Table 7. Data Format Description
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
A2
A1
A0
R/W
D3
D2
D1
D0
SP
I:
S
tan
d
-by
&
WD
:T
rigger
Wake-up
Normal Request
Stand-by Debug
SP
I:Norma
lDebug
Normal
WD:
Trigg
er
Standby
SPI: Standby Debug
SP
I:
S
tand-
by
SP
I: N
orm
al D
ebu
g
Reset
Reset Counter
(3.4 ms) Expired
WD: Timeout 350 ms
&!
BA
TF
AI
LNO
S
T
O
P
&
SP
I:
Sl
e
p
SPI: Normal Debug
Normal Debug
SP
I: S
tandby
De
bug
Stop Debug
S
P
I:S
to
p
W
ake-
up
E
SPI:
S
to
p
Deb
ug
&
CS
Low
to
Hig
h
T
ran
si
tio
n
Wake-up
R
(1) If Stop mode entered, it is entered without watchdog, no matter the WDSTOP bit.
(E) Debug mode entry point (Step 5 of the Debug mode entering sequence).
(R) Represents transitions to Reset mode due to VDD1 low.
Sleep
Stop (1)
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