參數(shù)資料
型號： XRM48L950ZWTT
廠商： Texas Instruments
文件頁數(shù)： 43/176頁
文件大小： 0K
描述： MCU 16/32Bit FLASH 3MB 337NFBGA
標(biāo)準(zhǔn)包裝： 1
系列： Hercules™ ARM® RM4x
應(yīng)用： 工業(yè)安全，醫(yī)療
核心處理器： ARM? Cortex? - R4F
程序存儲器類型： 閃存（3MB）
控制器系列： RM4
RAM 容量： 256K x 8
接口： CAN，以太網(wǎng)，I²C，LIN，MibSPI，SCI，SPI，USB
輸入/輸出數(shù)： 120
電源電壓： 1.14 V ~ 3.6 V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 337-LFBGA
包裝： 托盤
供應(yīng)商設(shè)備封裝： 337-NFBGA（16x16）
其它名稱： 296-29390
N2HET1
N2HET2
IOMMmuxcontrolsignalx
N2HET1[1,3,5,7,9,11]/N2HET2[8,10,12,14,16,18]
N2HET1[1,3,5,7,9,11]
N2HET2[8,10,12,14,16,18]
SPNS174A – APRIL 2012 – REVISED SEPTEMBER 2013
5.4.5
N2HET Checking
5.4.5.1
Internal Monitoring
To assure correctness of the high-end timer operation and output signals, the two N2HET modules can be
used to monitor each other’s signals as shown in Figure 5-7. The direction of the monitoring is controlled
by the I/O multiplexing control module.
Figure 5-7. N2HET Monitoring
5.4.5.2
Output Monitoring using Dual Clock Comparator (DCC)
N2HET1[31] is connected as a clock source for counter 1 in DCC1. This allows the application to measure
the frequency of the pulse-width modulated (PWM) signal on N2HET1[31].
Similarly, N2HET2[0] is connected as a clock source for counter 1 in DCC2. This allows the application to
measure the frequency of the pulse-width modulated (PWM) signal on N2HET2[0].
Both N2HET1[31] and N2HET2[0] can be configured to be internal-only channels. That is, the connection
to the DCC module is made directly from the output of the N2HETx module (from the input of the output
buffer).
For more information on DCC see Section 4.7.3.
5.4.6
Disabling N2HET Outputs
Some applications require the N2HET outputs to be disabled under some fault condition. The N2HET
module provides this capability via the "Pin Disable" input signal. This signal, when driven low, causes the
N2HET outputs identified by a programmable register (HETPINDIS) to be tri-stated. Please refer to the
device specific technical reference manual for more details on the "N2HET Pin Disable" feature.
GIOA[5] is connected to the "Pin Disable" input for N2HET1, and GIOB[2] is connected to the "Pin
Disable" input for N2HET2.
Copyright 2012–2013, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
137
Product Folder Links: RM48L950 RM48L750 RM48L550
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