MMC2080 Datasheet, PDF (27/34 Pages) Motorola, Inc – Integrated Processor with Roaming FLEX Decoder

Tables of Signals
Table 18. JTAG/OnCE™ Signals
Signal Name Dir N
I/O Cell
Description
TMS
TCK
TDI
TDO
TRST
DE
I
Y
I
Y
I
Y
O
Y
I
Y
I/O Y
INHPP
INHPP
INHPP
OTP
INHP
IOHPPH
Test Mode Select—Pull-up resistor always enabled
Test Clock—Pull-up resistor always enabled
Test Data In—Pull-up resistor always enabled
Test Data Out
TAP Reset (active low)
Debug Enable (open drain, active low)
Table 19. Clock and Power
Signal Name
EXTAL
XTAL
CXFC
V_ddCore (5)
V_ssCore(5)
V_ddIO (11)
V_ssIO (11)
V_ddOSC
V_ssOSC
V_ddPLL
V_ssPLL
N I/O Cell
Description
Y
AIN Oscillator circuit input—external 76.8 kHz crystal
Y
AOT Oscillator circuit output
Y
AIN PLL filter capacitor
Y Power Core power
Y Power Core ground
Y Power I/O pad power
Y Power I/O pad ground
Y Power Oscillator power
Y Power Oscillator ground
Y Power PLL power
Y Power PLL ground
Table 20. Arbitration Signals
Signal Name
BREQ
BGNT
Dir N I/O Cell
Description
I
Y INHPP Arbitration Request (active low)—Request mastership of the
internal system bus; pull-up resistor always enabled
O Y OTP
Arbitration Grant (active low)—Indicates system bus is granted to
external master
Signal and Connection Descriptions
27
Preliminary