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H8S/2218 Scheda tecnica(PDF) 497 Page - Renesas Technology Corp

Il numero della parte H8S/2218
Spiegazioni elettronici  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  750 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8S/2218 Scheda tecnica(HTML) 497 Page - Renesas Technology Corp

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Section 13 Boundary Scan Function
Rev.6.00 Jun. 03, 2008 Page 449 of 698
REJ09B0074-0600
Section 13 Boundary Scan Function
The HD64F2218 and HD64F2218U incorporate a boundary scan function, which is a serial I/O
interface based on the JTAG (Joint Test Action Group, IEEEStd.1149.1 and IEEE Standard Test
Access Port and Boundary Scan Architecture). Figure 13.1 shows the block diagram of the
boundary scan function.
13.1
Features
• Five test signals
⎯ TCK, TDI, TDO, TMS, TRST
• Six test modes supported
⎯ BYAPASS, SAMPLE/PRELOAD, EXTEST, CLAMP, HIGHZ, IDCODE
• Boundary scan function cannot be performed on the following pins.
⎯ Power supply pins: VCC, VSS, Vref, PLLVCC, PLLVSS, DrVCC, DrVSS
⎯ Clock signals:
EXTAL, XTAL, OSC2, OSC1
⎯ Analog signals:
P40 to P43, P96, P97, USD+, USD-
⎯ Boundary scan signals: TCK, TDI, TDO, TMS, TRST
⎯ H-UDI control signal: EMLE



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