RH850/F1K Series Hardware Design Guide
R01AN2911EJ0100 Rev. 1.00 Page 43 of 46
Aug 04, 2016
6.2 Boundary Scan Mode Interface of RH850/F1K Group
The boundary scan test is compliant with IEEE Standard 1149.1 and certain boundary scan instructions are supported.
When the boundary scan mode shall be used, several connections have to be done between boundary scan test tool and
the device. Especially the boundary scan mode selection pins have to be considered from application point of view as
these pins are normally used for application related functions.
Figure 23 Boundary scan connection of RH850/F1K
Note: During boundary scan mode the level of the following pins must be fixed: P10_1: Low, P10_2: High, P10_8:
High
In case of the digital I/O pins shared with an analog buffer the boundary scan function only applies to the general I/O
function:
ADCA0: AP0, P8 and P9
ADCA1: AP1, P18
VDD
GND
VDDVDD
EVCC
EVSS
TDI
TDO
TCK
TMS
TRST (optional)
RDY
RESET
RESET
P10_8 (FLMD1)
FLMD0
JP0_0 (DCUTDI)
JP0_1 (DCUTDO)
JP0_2 (DCUTCK)
JP0_3 (DCUTMS)
JP0_4 (DCUTRST)
JP0_5 (DCURDY)
RH850/F1K Group
Boundary Scan Test Tool
(Connector)
100kΩ
1k to 10kΩ
P10_1 (MODE0)
P10_2 (MODE1)
Set to high-level
Set to high-level
Set to low-level
Set to high-level
(optional)
JP0_6 (EVTO)EVTO
10k to 100kΩ